• <strike id="w6iki"></strike>
    <ul id="w6iki"></ul>
      首頁 產品展示>Perkins2306A(C)-E14發動機故障維修診斷手冊

      Perkins2306A(C)-E14發動機故障維修診斷手冊

      Perkins2306A(C)-E14發動機故障維修診斷手冊,Perkins2306A(C)-E14發動機故障維修診斷手冊技術支持中心,Perkins2306A(C)-E14發動機故障維修診斷手冊代理商,Perkins2306A(C)-E14發動機故障維修診斷手冊銷售服務中心,Perkins2306A(C)-E14發動機故障維修診斷手冊價格規格資料查詢,寧波日昕動力科技有限公司
      產品咨詢

      詳細描述

      Perkins 2300 Series

      Models 2306A-E14 and 2306C-E14

      DIAGNOSTIC MANUAL

      6 cylinder turbocharged diesel engine

      Publication TSD 3457E, Issue 2.

      © Proprietary information of Perkins Engines Company Limited, all rights reserved.

      The information is correct at the time of print.

      Published in December 2006 by Technical Publications,

      Perkins Engines Company Limited, Peterborough PE1 5NA England.

      Diagnostic Manual, TSD 3457E, Issue 2

      i

      This document is printed from SPI². Not for RESALE

      Chapters

      1    General information

      2    Electronic system overview

      3    Programming parameters

      4    Fault diagnosis

      5    Special Tools

      The following pages contain a detailed table of contents

      ii

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      Contents

      1 General information

      Introduction ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...1

      Safety precautions  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 2

      Glossary of terms  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...3

      2 Electronic system overview

      System operation .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...9

      Electronic controls  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 9

      Engine governor  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...9

      Timing considerations .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...9

      Fuel injection . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .10

      Engine monitoring   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .11

      Fuel temperature monitoring ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... .11

      Self diagnostics   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .11

      Effect of diagnostic codes on engine performance  .. ... ... ... ... ... ... ... ... ... ... ... ... .12

      Current totals stored in the ECM . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .12

      Programmable parameters  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .12

      Passwords . ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .13

      Diagnostic Manual, TSD 3457E, Issue 2

      iii

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      Engine component diagram  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  14

      OEM connection diagram  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  15

      Sensor and connector location diagram . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  16

      Engine wiring diagram .. ... ... ... ... ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... 17

      Machine wiring diagram (all options)  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  18

      Electrical connectors and functions  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  19

      Colour codes .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  19

      Service tools and diagnostics .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  20

      3 Programming parameters

      Connecting the TIPSS-EST ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  21

      Passwords .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  23

      Programming a new ECM  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  24

      Programming an ECM using flash programming ... ... ... ... ... ... ... ... ... ... ... ... ... ...  27

      ECM date/time clock .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  28

      ECM diagnostic clock  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

      Injector codes  ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

      TIPSS-EST cylinder cut-out test ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

      Programming parameters . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

      System configuration parameters  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  30

      Customer specified parameters ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  32

      4 Fault diagnosis

      Introduction  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  35

      Diagnostic procedures without a diagnostic fault code

      General information  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  36

      iv

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      Diagnostic symptoms

      Test 1 - Engine will not crank   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .37

      Test 2 - Engine cranks but will not start   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .38

      Test 3 - Engine misfires, runs rough or is unstable ... ...  ... ... ... ... ... ... ... ... ... ... ... ... .39

      Test 4 - Low power/poor or no response to throttle ... ... ... ... ... ... ... ... ... ... ... ... ... ... .40

      Test 5 - Intermittent engine shutdowns  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .41

      Test 6 - Intermittent low power or power cut-outs  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... .42

      Test 7 - Electronic service tool will not communicate with the ECM  . ... ... ... ... ... ... ... .43

      Test 8 - ECM will not accept factory passwords  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .44

      Test 9 - Excessive black smoke  ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .45

      Test 10 - Excessive white smoke  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .46

      Test 11 - Excessive blue smoke  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .47

      Test 12 - Engine cannot reach correct rev/min  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .48

      Test 13 - Poor acceleration or response  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .49

      Test 14 - Poor fuel consumption  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .50

      Test 15 - Too much vibration . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .51

      Test 16 - Noise coming from cylinder  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .52

      Test 17 - Excessive valve clearance  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .53

      Test 18 - Valve rotocoil or spring lock is free   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .54

      Test 19 - Mechanical noise (knock) in engine  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .55

      Test 20 - Oil in cooling system  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .56

      Test 21 - Fuel in cooling system  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .57

      Test 22 - Coolant in lubricating oil  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .58

      Test 23 - Fuel dilution of lubricating oil .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .59

      Test 24 - Engine has early wear  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .60

      Test 25 - Engine has low oil pressure  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .61

      Test 26 - Engine uses too much lubricating oil .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .62

      Test 27 - Engine coolant is too hot  ... ... ... ... ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... .63

      Test 28 - Oil at the exhaust  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .64

      Test 29 - Engine has a fuel supply problem  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .65

      Test 30 - Indicator lamp not functioning correctly .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... .66

      Test 31 - Inlet air manifold temperature is too high  ... ... ... ... ... ... ... ... ... ... ... ... ... ... .67

      Test 32 - Engine has a high fuel temperature  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .68

      Diagnostic procedures with an event code

      General information .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .69

      Event codes ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  .69

      Diagnostic tests

      Test 33 - High intake manifold pressure  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .70

      Test 34 - Low oil pressure  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .71

      Test 35 - High coolant temperature ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  .72

      Test 36 - Engine overspeed  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .73

      Test 37 - High fuel temperature . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .74

      Test 38 - High intake manifold air temperature  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .75

      Diagnostic Manual, TSD 3457E, Issue 2

      v

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      Diagnostic procedures with a diagnostic fault code

      General information  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  76

      Diagnostic codes ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  76

      Diagnostic terminology . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  78

      Connectors . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  79

      Diagnostic tests

      Test 39 - Inspecting electrical connectors .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  82

      Test 40 - Electrical power supply to the ECM   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  88

      Test 41 - Analogue sensor open or short circuit test  . ... ... ... ... ... ... ... ... ... ... ... ... ...  91

      Test 42 - ECM Status indicator output circuit test .. ... ... ... ... ... ... ... ... ... ... ... ... ... .. 101

      Test 43 - +5 V Sensor voltage supply circuit test ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 107

      Test 44 - PWM desired speed setting circuit test ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 112

      Test 45 - Perkins Data Link circuit test  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 118

      Test 46 - Engine speed/timing circuit test  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 126

      Test 47 - Engine speed/timing calibration .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 134

      Test 48 - Injector solenoids circuit test ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 138

      Test 49 - Analogue sensor abnormal test  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 146

      5 Special tools

      Required service tools .. ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 149

      Optional service tools ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 150

      vi

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      1

      General information

      1

      Introduction

      The 2300 and 2800 Series industrial diesel engines are the latest development from Perkins Engines

      Company Limited, a world leader in the design and manufacture of high performance diesel engines.

      Read and remember the "Safety precautions" on page 2. They are given for your protection and must be

      applied at all times.

      Danger is indicated in the text by two methods:

      Warning! This indicates that there is a possible danger to the person.

      Caution: This indicates that there is a possible danger to the engine.

      Note: Is used where the information is important, but there is not a danger.

      Ensure that all adjustments and repairs are done by personnel who have had the correct training.

      Diagnostic Manual, TSD 3457E, Issue 2

      1

      This document is printed from SPI². Not for RESALE


       

      1

      2300 Series

      Safety precautions

      These safety precautions are important. Reference must also be made to the local regulations in the country

      of operation.

      Only use these engines in the type of application for which they have been designed.

      Do not change the specification of the engine.

      Do not smoke when you put fuel in the tank.

      Clean away fuel which has been spilt. Material which has been contaminated by fuel must be moved to a

      safe place.

      Do not put fuel in the tank while the engine runs (unless it is absolutely necessary).

      Do not clean, add lubricating oil, or adjust the engine while it runs (unless you have had the correct training;

      even then extreme caution must be used to prevent injury).

      Do not make adjustments that you do not understand.

      Ensure that the engine does not run in a location where it can cause a concentration of toxic emissions.

      Other persons must be kept at a safe distance while the engine or equipment is in operation.

      Do not permit loose clothing or long hair near moving parts.

      Keep away from moving parts during engine operation.

      Warning! Some moving parts cannot be seen clearly while the engine runs.

      Do not operate the engine if a safety guard has been removed.

      Do not remove the filler cap of the cooling system while the engine is hot and while the coolant is under

      pressure, because dangerous hot coolant can be discharged.

      Do not use salt water or any other coolant which can cause corrosion in the closed coolant circuit.

      Do not allow sparks or fire near the batteries (especially when the batteries are on charge) because the

      gases from the electrolyte are highly flammable. The battery fluid is dangerous to the skin and especially

      to the eyes.

      Disconnect the battery terminals before a repair is made to the electrical system. Always disconnect the

      negative terminal first.

      Only one person must control the engine.

      Ensure that the engine is operated only from the control panel or from the operator’s position.

      If your skin comes into contact with high-pressure fuel, obtain medical assistance immediately.

      Diesel fuel and lubricating oil (especially used lubricating oil) can damage the skin of certain persons.

      Protect your hands with gloves or a special solution to protect the skin.

      Do not wear clothing which is contaminated by lubricating oil. Do not put material which is contaminated

      with oil into the pockets.

      Discard used lubricating oil in a safe place to prevent contamination.

      The combustible material of some components of the engine (for example certain seals) can become

      extremely dangerous if it is burned. Never allow this burnt material to come into contact with the skin or with

      the eyes.

      Fuel and oil pipes MUST be inspected for cracks or damage before they are fitted to the engine.

      Fit only genuine Perkins parts.

      2

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      1

      2300 Series

      Glossary of terms

      Active diagnostic code

      Describes a condition that is currently present to alert the operator or service technician of an abnormal engine

      operation parameter. See also Diagnostic fault code.

      Aftermarket device

      A device or an accessory that is installed by the customer or OEM after the engine has been delivered.

      Alternating current (AC)

      The direction of current flow changes (alternates) regularly and constantly in a circuit.

      Atmospheric pressure sensor

      Analogue sensor generates a signal proportional to atmospheric (barometric) air pressure in the crankcase

      and sends a signal to the ECM.

      Before top center (BTC)

      The 180° of crankshaft rotation before the piston reaches the very top of its travel (normal direction of rotation).

      Intake manifold pressure sensor

      This sensor measures inlet manifold air pressure (boost pressure) and sends a signal to the ECM.

      Bypass circuit

      A circuit, usually temporary, to substitute for an existing circuit, typically for test purposes.

      Calibration

      An electronic adjustment of a sensor signal.

      Perkins engine monitoring

      The part of the Perkins Electronic Engine Control that monitors coolant temperature, oil pressure, intake

      manifold air temperature and coolant level to alert the operator of detected problems. The coolant temperature,

      intake manifold air temperature, and oil pressure sensors are supplied by Perkins and monitored by the ECM.

      Aftermarket engine monitoring systems do not interface with the Perkins Electronic Engine Control.

      Check engine lamp

      Sometimes referred to as the diagnostic lamp, it is used to alert the operator of the presence of an active event.

      Code

      Refer to diagnostic fault code and diagnostic event code.

      Cold mode

      A mode of engine operation where the timing is retarded for engine protection, reduced smoke emissions and

      faster warm up time.

      Diagnostic Manual, TSD 3457E, Issue 2

      3

      This document is printed from SPI². Not for RESALE


       

      1

      2300 Series

      Component identifier (CID)

      The CID is a number that identifies the specific component of the electronic control system that has

      experienced a diagnostic code. This is part of the PDL (Perkins Data Link).

      Communication adapter

      The communication adapter provides a communication link between the ECM and an electronic service tool.

      Coolant temperature sensor

      This sensor detects the engine coolant temperature for Cold Mode operation and Perkins Engine Monitoring.

      Crankshaft position sensor

      A sensor that measures the crankshaft position, the direction of rotation, and engine rev/min and sends signals

      to the ECM.

      Customer specified parameter

      A parameter value that can be changed and whose value is set by the customer. These parameters can be

      protected by customer passwords.

      Desired rev/min

      An input to the electronic governor in the ECM. The electronic governor uses inputs from the crankshaft

      position sensor and customer parameters to determine 'desired rev/min'.

      Diagnostic event code

      These codes indicate an event that describes an abnormal engine condition such as a shutdown occurrence.

      These codes are not necessarily (or usually) an indication of problems within the electronic system.

      Diagnostic fault code

      Sometimes referred to as a "fault code". These codes indicate an electronic system malfunction or problem

      with the engine electronic system.

      Diagnostic lamp

      Sometimes referred to as the "engine check lamp", it is used to alert the operator of the presence of an active

      diagnostic code.

      Direct current (DC)

      The type of current where the direction of current flow is consistently in one direction.

      Duty cycle

      Refer to pulse width modulation.

      Engine control module (ECM)

      The engine control computer that provides power to the engine electronics. It accepts inputs that monitor and

      outputs that control or change to act as a governor to control engine rev/min.

      Electronically controlled unit injector

      The injection pump which is a mechanically actuated, electronically controlled unit injector, combining the

      pumping, electronic fuel metering and injecting elements in a single unit.

      Electronic engine control

      The complete electronic system that monitors and controls the engine operation under all conditions.

      Engine speed/timing sensor

      Provides a variable amplitude and pulse width modulated signal to the ECM, which the ECM interprets as

      crankshaft position and engine speed.

      Estimated dynamic timing

      The ECM's estimation of actual injection timing.

      4

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      1

      2300 Series

      Failure mode identifier (FMI)

      Type of failure that has been experienced by the component (adopted from the SAE standard practice of J1587

      diagnostics).

      Flash programming

      A method of programming or updating an ECM with an electronic service tool over the data link instead of

      replacing components.

      Fuel position

      An internal signal within the ECM, from the electronic governor to the fuel injection control. It is based on

      desired rev/min, FRC fuel limit, rated fuel limit, and the actual engine rev/min.

      Fuel ratio control (FRC)

      A limit based on control of the fuel to air ratio and used for emission control purposes. When the ECM senses

      a higher intake manifold pressure (more air into cylinder), it increases the FRC fuel limit (allows more fuel into

      cylinder).

      Fuel temperature sensor

      This sensor detects the fuel temperature. The ECM monitors the fuel temperature and adjusts the calculated

      fuel rate accordingly.

      Full load setting (FLS)

      Number representing fuel system adjustment made at the factory to "fine tune" the fuel system maximum fuel

      delivery. Correct value for this parameter is stamped on the engine information ratings plate. This parameter

      must be programmed or a 268-02 Check Programmable Parameters diagnostic code will be generated.

      Full torque setting (FTS)

      Similar to the Full Load Setting. This parameter must be programmed or a 268-02 Check Programmable

      Parameters diagnostic code will be generated.

      Harness

      The wiring loom that connects all components of the electronic system.

      Hertz (Hz)

      Measure of electrical frequency in cycles per second.

      Diagnostic Manual, TSD 3457E, Issue 2

      5

      This document is printed from SPI². Not for RESALE


       

      1

      2300 Series

      Histogram

      A bar graph indicating the relative frequency of engine operation in specific operating ranges.

      Injector codes

      Four digit code etched on the tappet or stamped on individual injectors of the electronic unit injectors.

      Intake manifold air temperature sensor

      This sensor detects the intake manifold air temperature. The ECM monitors the inlet air temperature and

      coolant temperature to adjust injection timing.

      Integrated electronic controls

      The engine is designed with the electronic controls as a necessary part of the system. The engine will not

      operate without the electronic controls.

      J1939 data link

      An SAE (Society of Automotive Engineers) standard data link used to communicate between the electronic

      engine, the transmission, and/or powertrain controls.

      Logged diagnostic codes

      Describes codes which are stored in memory. These codes are meant to be an indicator of possible causes

      for intermittent problems. Refer to diagnostic fault code.

      Oil pressure sensor

      This sensor measures engine oil pressure and sends a signal to the ECM as part of Perkins Engine Monitoring.

      Open circuit

      Condition where an electrical wire or connection is broken or a switch is open, so that the signal or the supply

      voltage can no longer reach its intended destination.

      Original equipment manufacturer (OEM)

      The manufacturer of equipment in which a Perkins engine is installed.

      Parameter

      A programmable value or limit which determines the characteristics or behaviour of the engine.

      Parameter identifier (PID)

      Two or three digit code which is assigned to each component in order to identify data via the data link to the

      ECM.

      Password

      A group of numeric or alphanumeric characters that is designed to restrict access to parameters. The

      electronic system requires correct passwords in order to change customer specified parameters (customer

      passwords) or certain engine specifications (factory passwords). Passwords are also required to clear certain

      diagnostic codes.

      6

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      1

      2300 Series

      Pulse width modulation (PWM)

      A signal consisting of variable width pulses at fixed intervals, whose ratio of "TIME ON" versus total "TIME

      OFF" can be varied (also referred to as "duty cycle").

      ON

      10% Duty Cycle

      OFF

      ON

      50% Duty Cycle

      OFF

      ON

      90% Duty Cycle

      OFF

      TIME

      Example of Pulse Width Modulation (PWM) Signals

      Rated fuel limit

      Indicates the maximum allowable fuel position (longest injection pulse). It will produce rated power for this

      engine configuration.

      Reference voltage

      A regulated, unchanging voltage supplied by the ECM to a sensor. The reference voltage is used by the sensor

      to generate a signal voltage.

      Sensor

      A device that is used to detect and convert a change in pressure, temperature, or mechanical movement into

      an electrical signal.

      Short circuit

      A condition where an electrical circuit is unintentionally connected to an undesirable point. An example of a

      short circuit is a wire which rubs against an engine frame until it eventually wears off its insulation and makes

      electrical contact with the frame.

      Subsystem

      A part of the electronic system that relates to a particular function.

      Supply voltage

      A constant voltage supplied to a component to provide electrical power for its operation. It may be generated

      by the ECM or may be battery voltage supplied by the equipment wiring.

      System configuration parameters

      Parameters that affect the power rating family or emissions.

      "T" harness

      A test harness that is designed to connect into the engine harness which allows normal circuit operation while

      providing a breakout or "T" in order to measure signals.

      Timing calibration

      The adjustment of an electrical signal as a means of correcting the timing error between the crankshaft and

      crankshaft position sensors.

      Diagnostic Manual, TSD 3457E, Issue 2

      7

      This document is printed from SPI². Not for RESALE


       

      1

      2300 Series

      TIPSS-EST

      A service tool software program to run on a personal computer (PC).

      Total tattletale

      Total number of changes to all the customer specified parameters stored in the ECM.

      8

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      2

      Electronic system overview

      2

      System operation

      The 2300 and 2800 Series industrial diesel engines are designed for electronic control. The injection pump,

      fuel lines and nozzles used in mechanical engines have been replaced with an electronic unit injector in each

      cylinder. A solenoid on each injector controls the amount of fuel that is delivered by the injector. An Engine

      Control Module (ECM) sends a signal to each injector solenoid in order to provide complete control of the

      engine.

      Electronic controls

      The electronic system consists of the Engine Control Module (ECM), the engine sensors and the OEM

      interface. The ECM is the computer which controls the engine and contains the software which controls how

      the ECM behaves and stores the operating maps that define power, rev/min, etc.

      Engine governor

      The electronic controls on the engine serve as the engine governor, determining when and how much fuel to

      deliver to the cylinders based on the actual and desired conditions at any given time.

      The ECM uses one of three possible speed control inputs to determine the desired engine speed and

      compares this to the actual engine speed determined through the crankshaft position sensor. If the desired

      engine speed is greater than the actual engine speed, more fuel is injected in order to increase engine speed.

      Timing considerations

      Once the ECM has determined how much fuel is required, it must next determine when to inject the fuel.

      Injection timing is determined by the ECM after considering input from the following components:

      Coolant temperature sensor

      Intake manifold air temperature sensor

      Atmospheric pressure sensor

      Intake manifold pressure sensor

      The ECM determines where top centre on cylinder number one is located from the engine camshaft position

      sensor signal. The ECM decides when injection should occur relative to top centre and provides the signal to

      the injector at the desired time. The ECM adjusts timing for the best engine performance, fuel economy and

      white smoke control.

      Note: Actual or desired timing cannot be viewed with the TIPSS-EST service tool.

      Diagnostic Manual, TSD 3457E, Issue 2

      9

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Fuel injection

      The ECM controls the amount of fuel injected by varying the signals to the injectors. The injectors will pump

      fuel only if the injector solenoid is energized. The ECM sends a high voltage signal to energize the solenoid.

      By controlling the timing and duration of the high voltage signal the ECM can control injection timing and the

      amount of fuel that is injected.

      The software inside the ECM sets certain limits on the amount of fuel that can be injected. The fuel limit is a

      limit based on boost pressure to control the air/fuel ratio for control of emissions. When the ECM senses a

      higher boost pressure (more air into cylinder) it increases the fuel limit (allows more fuel into cylinder).

      The Rated Fuel Limit is a limit that is based on the power rating of the engine and engine rev/min. It is similar

      to the rack stops and torque spring on a mechanically governed engine. It provides power and torque curves

      for a specific engine family and rating.

      Note: All of these limits are determined at the factory in the ECM software and cannot be changed.

      10

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Engine monitoring

      Perkins provides a factory installed engine monitoring system. The Perkins engine monitoring system monitors

      the following parameters:

      Engine oil pressure

      Coolant temperature

      Intake manifold air temperature

      Engine speed

      Boost pressure

      Fuel temperature

      The Perkins engine monitoring system has three levels of operation, WARNING, ACTION ALERT and

      SHUTDOWN as described below.

      Perkins engine monitoring WARNING operation

      In the WARNING condition the ECM causes the Warning lamp to turn ON to indicate a problem has been

      detected by the Engine Monitoring System. No further ECM or engine action occurs.

      Perkins engine monitoring ACTION ALERT operation

      In the ACTION ALERT condition the ECM begins by activating the Action Alert lamp ON to indicate a problem

      has been detected by the Engine Monitoring System. This is also normally wired to cause a shutdown via the

      OEM control panel.

      Perkins engine monitoring SHUTDOWN operation

      If the fault reaches the SHUTDOWN condition the ECM activates the shutdown lamp and unless the engine is

      in CRITICAL OVERRIDE condition, the engine will shutdown.

      Fuel temperature monitoring

      The fuel temperature sensor monitors the fuel temperature, adjusting the ECM calculated fuel rate to

      compensate for fuel temperature changes and to adjust the fuel rate for constant power. The sensor is also

      used to warn the operator of excessive fuel temperature with a diagnostic event code because excessive fuel

      temperatures can adversely affect engine performance.

      Self diagnostics

      The electronic system has the ability to diagnose problems. When a problem is detected, a diagnostic code is

      generated and stored in permanent memory (logged) in the ECM. The diagnostic lamp is also activated.

      When diagnostic codes occur, the diagnostic codes are referred to as Active diagnostic codes. They indicate

      that a problem of some kind currently exists.

      Diagnostic codes that are stored in memory are called Logged diagnostic codes. Since the problem may have

      been temporary, or may have been repaired since the problem was logged, logged codes do not necessarily

      mean that something needs to be repaired. They are instead meant to be an indication of probable causes for

      intermittent problems.

      Diagnostic codes that identify operating conditions outside the normal operating range are called Events.

      Event codes are not typically an indication of an electronic system problem.

      Note: Some of the diagnostic codes require passwords to clear.

      Diagnostic Manual, TSD 3457E, Issue 2

      11

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Effect of diagnostic codes on engine performance

      The discussion on engine monitoring mentions that the diagnostic lamp activates when a specific condition

      exists. When the ECM detects an engine problem, it generates an active diagnostic code and also logs the

      diagnostic code in order to indicate when, and if appropriate, how many times the problem occurred. There are

      two types of diagnostic codes, Fault codes and Event codes.

      Diagnostic fault codes

      These are provided in order to indicate that an electrical or electronic problem has been detected by the ECM.

      In some cases the engine performance can be affected when the condition causing the code exists. More

      frequently, however, no difference in the engine performance can be detected.

      Diagnostic event codes

      Diagnostic event codes are used to indicate that some operational problem has been detected in the engine

      by the ECM. This usually does not indicate an electronic malfunction.

      The ECM also provides an ECM clock with date/time to date and time stamp the following critical event codes:

      360-3 Low oil pressure Shutdown

      361-3 High coolant temperature Shutdown

      For a listing all of the diagnostic fault codes, along with the page number where details regarding the cause,

      performance effect, and diagnosis of the code can be located, refer to "Diagnostic code quick reference" on

      page 80.

      Current totals stored in the ECM

      The ECM maintains engine total data for the following parameters:

      Total time

      The total time is the engine's operating hours. This does not include operating time when the ECM is powered

      ON but the engine is not running.

      Programmable parameters

      Certain parameters affecting engine operation may be changed with the TIPSS-EST service tool. The

      parameters are stored in the ECM, and are protected from unauthorized changes by passwords. These

      parameters are either system configuration parameters or customer parameters.

      System configuration parameters

      These are set at the factory and affect emissions or power ratings within an engine family. Factory passwords

      must be obtained and used to change the system configuration parameters.

      Customer parameters

      These are variable and can be used to tailor the engine to customer requirements within the limits set by the

      factory and Perkins engine monitoring operation. Customer passwords may be required to change customer

      parameters.

      Caution: Some of the parameters may affect engine operation. Without adequate training, these parameters

      may lead to power or performance complaints even when the engine is performing to specification.

      Refer to "Programming parameters" on page 29 for further information.

      12

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Passwords

      System configuration parameters are protected by factory passwords. Factory passwords are calculated on a

      computer system that is available only to Perkins dealers.

      Customer parameters can be protected by customer passwords. The customer passwords are programmed

      by the customer. Factory passwords can be used to change customer passwords if they are lost.

      Refer to "System configuration parameters" on page 30 for further information when passwords are needed

      and how to obtain them.

      Diagnostic Manual, TSD 3457E, Issue 2

      13

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Engine component diagram

      Internal Injector Harness

      12PIN Connector

      Service

      Tool

      Connector

      Interface

      Connector

      OEM Interface Connectors

      Main Engine Harness

      Crank Speed/Timing

      Cam Speed/Timing

      36-1 TOOTH

      CRANK

      GEAR

      Inlet Manifold Temperature

      Sensor

      Fuel Temperature Sensor

      36+1 TOOTH

      CAM GEAR

      Cooolat Temperature Sensor

      Atmospheric Pressure Sensor

      Boost

      Pres Sensor

      Calibration

      Probe

      Lub Oil Pressure

      Sensor

      A

      HA0002

      14

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      OEM connection diagram

      To ECM J1 Connector

      Customer connecter  (If fitted)

      E-Stop

      16A Breaker

      Service Tool

      Connector

      Keyswitch

      Injector D, isable

      Optional

      24V

      Digital Speed  Control

      Optional

      Optional

      Speed

      Raise/Lower

      Critical  Override

      Optional

      Optional

      Throttle Adjust Pot

      Lamp Box

      1: Diagnostics

      2: Caution

      3: Warning

      Speed Control

      4: Shutdown

      5: Overspeed

      6: High Coolant Temp

      7: Low Pressure

      1

      2

      3

      Shutdown

      Reset

      Optional

      droop

      adjust

      -B

      S

      D

      +B

      Switched

      Battery +ve

      Optional

      Droop/Isoch

      Optional

      Potentiometer

      0.5-4.5V

      Speed

      Selection

      Optional

      Screen tied  to

      ECM -VE

      A

      HA0003

      Diagnostic Manual, TSD 3457E, Issue 2

      15

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Sensor and connector location diagram

      1 Electronic Control Module (ECM)

      2 J1/P1 Machine connector

      3 J2/P2 Engine connector

      4 Atmospheric pressure sensor

      5 Oil pressure sensor

      6 Crankshaft position sensor

      7 Fuel temperature sensor

      8 Camshaft position sensor

      9 Coolant temperature sensor

      10 Intake manifold pressure sensor

      11 Intake manifold air temperature sensor

      12 Electronic unit injector connector

      13 Timing calibration pickup connector

      16

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Engine wiring diagram

      ECM

      5

      7

      6

      J2/44

      J2/45

      J2/46

      J2/55

      J2/54

      J2/39

      J2/38

      J2/37

      J2/36

      Injector Common Cylinders 1 & 2

      Injector Common Cylinders 3 & 4

      Injector Common Cylinders 5 & 6

      Injector Cylinder 6

      Injector Cylinder 5

      Injector Cylinder 4

      Injector Cylinder 3

      Injector Cylinder 2

      Injector Cylinder 1

      B

      B

      B

      A

      P

      G

      W

      B

      B

      B

      A

      P

      G

      W

      K

      10

      3

      11

      2

      12

      1

      K

      R

      R

      Injector

      Cyl 1

      Injector

      Cyl 2

      Injector

      Cyl 3

      Injector

      Cyl 4

      Injector

      Cyl 5

      Injector

      Cyl 6

      J300 P300

      Atmospheric Pressure Sensor

      +5V

      Signal

      Return

      A

      C

      B

      J2/2

      J2/14

      J2/3

      +5VDC Supply

      Atmospheric Pressure

      Analogue Return

      O

      U

      N

      P203  J203

      Intake Manifold Pressure Sensor

      +5V

      Signal

      Return

      A

      C

      B

      Intake Manifold  Pressure

      J2/40

      U

      P200  J200

      Oil Pressure Sensor

      +5V

      Signal

      Return

      A

      C

      B

      J2/24

      J2/32

      J2/33

      Oil Pressure

      A

      P201  J201

      Coolant Temperature Sensor

      Coolant Temperature

      Signal

      Return

      C

      B

      U

      J100  P100

      Fuel Temperature Sensor

      C

      Fuel Temperature

      Signal

      Return

      U

      B

      J105  P105

      Inlet Air Temperature Sensor

      Signal

      Return

      C

      B

      J2/35

      J2/18

      Inlet Air Temperature

      Return

      U

      N

      J103  P103

      Crankshaft Position Sensor

      Signal

      Return

      2

      1

      J2/48

      J2/49

      Crank Speed Timing +

      Crank Speed Timing -

      Y

      U

      J401  P401

      Camshaft Position Sensor

      Signal

      Return

      2

      1

      J2/58

      J2/59

      Cam Speed timing +

      Cam speed timing -

      Y

      U

      J402  P402

      Calibration Probe

      Signal

      Return

      1

      2

      J2/22

      J2/23

      Calibration Probe +

      Calibration Probe -

      Y

      U

      J400  P400

      P2  J2

      A

      HA0005

      Diagnostic Manual, TSD 3457E, Issue 2

      17

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Machine wiring diagram (all options)

      This Wiring Supplied By OEM

      Outputs may be used to

      drive lamps or relays

      Customer

      Interface

      Connector

      J3  P3

      11

      ECM

      Engine Running

      Shutdown

      Engine Running Output

      J1/13

      J1/10

      W

      G

      16

      5

      Shutdown lamp Output

      Action Alert Lamp Output

      Warning Lamp Output

      System Fault Lamp Output

      Action Alert

      J1/19

      U

      Warning

      4

      3

      J1/20

      J1/31

      P

      I

      Diagnostics

      Oil Pressure

      8

      J1/28

      J1/29

      Oil Pressure Lamp Output

      O

      N

      Coolant Temp

      17

      Coolant Temperature Lamp Output

      Overspeed Lamp Output

      Overspeed

      9

      J1/30

      J1/49

      A

      2

      Digital Speed Control Enable

      Injection Disable

      Digital Speed

      Control Enable

      G

      U

      P

      K

      O

      N

      A

      Y

      34

      J1/62

      J1/59

      Injection

      Disable

      29

      35

      Lower Speed

      Lower

      Speed

      J1/64

      J1/7

      Shutdown Emergency Override

      Raise Speed

      Critical Override

      28

      Raise

      Speed

      25

      26

      18

      12

      J1/56

      1500/1800 rpm Select

      Droop/Isochronous

      Fault Reset

      1500/1800

      rpm Select

      J1/46

      Droop/

      Isochronous

      J1/41

      J1/18

      Fault Reset

      Digital Ground

      - Battery

      B

      B

      27

      22

      J1/67

      J1/5

      Ground

      Ground

      To PWM

      Speed Control

      (If Required)

      B

      PWM

      36

      21

      J1/66

      J1/4

      PWM Input

      +8V

      W

      R

      +8V

      23

      20

      680R

      B

      B

      5K Analogue

      Speed Setting

      Potentiometer or

      Input from Load

      Sharer/Synchroniser

      J1/3

      Analogue Ground

      Analogue Speed Input

      +5V

      24

      19

      38

      J1/17

      J1/2

      W

      R

      B

      680R

      J1/61

      J1/63

      J1/65

      J1/48

      J1/52

      J1/53

      - Battery

      - Battery

      Charging

      Alternator

      39

      B

      - Battery

      40

      15

      33

      GRD

      POS

      B

      Emergency

      Stop Button

      Unswitched + Battery

      R

      R

      R

      Unswitched + Battery

      Unswitched + Battery

      1

      10

      31

      32

      11

      7

      J1/70

      J1/50

      J1/34

      J1/42

      Switched + Battery

      J1939 Data Link +

      Key

      Switch

      Y

      G

      Circuit

      Breaker

      J1939

      J1939 Data Link -

      J1939 Screen

      Data

      Link

      A

      Starter

      Motor

      Perkins Data Link +

      Perkins Data Link -

      Perkins

      Data

      Link

      J1/8

      J1/9

      G

      6

      Start

      N

      Button

      J1/55

      J1/69

      Unswitched + Battery

      - Battery

      R

      B

      -

      +

      P1  J1

      Battery

      9 Pin Perkins Data

      Link Connector

      24V DC

      J

      H  C   G   F

      D  E   A  B

      A

      HA0006

      18

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Electrical connectors and functions

      Connector

      Function

      J1/P1

      ECM connector (70-Pin OEM harness)

      J2/P2

      ECM connector (70-Pin Engine harness)

      J3/P3

      Machine wiring connector (40-Pin connector) - optional

      Engine coolant temperature sensor (2-pin connector)

      Engine intake manifold temperature sensor (2-pin connector)

      Engine fuel temperature sensor (2-pin connector)

      Engine intake manifold pressure sensor (3-pin connector)

      Engine oil pressure sensor (3-pin connector)

      J100/P100

      J103/P103

      J105/P105

      J200/P200

      J201/P201

      J203/P203

      J300/P300

      J400/P400

      J401/P401

      J402/P402

      Engine atmospheric pressure sensor connector (3-pin connector)

      Injector solenoid harness (12-pin connector)

      Engine timing calibration probe (2-pin connector)

      Crankshaft position sensor (2-pin connector)

      Camshaft position sensor (2-pin connector)

      Colour codes

      Key letter

      Colour

      Brown

      Blue

      N

      U

      R

      P

      Red

      Purple

      Green

      White

      Yellow

      Black

      Orange

      Pink

      G

      W

      Y

      B

      O

      K

      A

      Grey

      Diagnostic Manual, TSD 3457E, Issue 2

      19

      This document is printed from SPI². Not for RESALE


       

      2

      2300 Series

      Service tools and diagnostics

      The Perkins TIPSS-EST service tool is designed to help the service technician analyse and locate faults or

      problems within the system. They are required to perform calibrations and to read or change engine

      parameters.

      Perkins TIPSS-EST is a software program that runs on a personal computer and requires a communication

      adapter to translate information from the Perkins Data Link to the computer RS232 port.

      Perkins TIPSS-EST can be used to display the following information:

      Programmable parameter settings

      Active and logged diagnostic codes

      Logged events

      Engine rating history

      Histograms

      Custom data

      ECM date/time clock

      Perkins TIPSS-EST can also be used to perform the following functions:

      Diagnostic tests

      Sensor calibrations

      Flash programming

      Parameter programming

      Copy configuration (ECM replacement)

      Data logging

      Real time graphing

      There are several adapter cables, breakout T cables, etc that are used in order to access measurements of

      signals. A heavy duty multimeter is suitable in order to make the necessary measurements. A multimeter that

      has the ability to measure duty cycle may also be required. Other special tools include those needed to

      measure pressure and temperature. For further details refer to Chapter 5, Special tools.

      A diagnostic code reader is also available. This is a hand held unit which allows reading certain parameters

      and diagnostic codes.

      20

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      3

      Programming parameters

      3

      Connecting the TIPSS-EST

      The communications adapter is powered by 24 Volts DC from the engine battery. This permits operation

      beside the engine to allow use during engine operation.

      Use the following procedures to connect the service tool to the engine.

      1  Stop the engine by turning the key switch to the OFF position.

      2  Connect the service tool harness cable on the engine to the communication adapter. Refer "Connecting

      TIPSS-EST using a TIPSS communication adapter" on page 22.

      3  Connect the communication adapter to the PC using the appropriate cable.

      4  Turn the key switch to the ON position in order to begin testing. The service tool will operate while the engine

      is running or with the engine OFF and the key switch ON. If the tool does not communicate with the ECM

      disconnect and reconnect the diagnostics connector cable. Check the communication. If the problem is still

      present refer to Test 45: Perkins Data Link circuit test on page 118.

      Notes:

      The service tool may restart during engine cranking due to a voltage dip on the battery line.

      The TIPSS-EST must be configured to communicate with the specific type of communication adapter used.

      Go to the "Preferences" menu that is located under "Utilities" in order to select the appropriate

      communication adapter.

      Diagnostic Manual, TSD 3457E, Issue 2

      21

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Connecting TIPSS-EST using a TIPSS communication adapter

      1 PC with TIPSS-EST installed

      2 PC to communication adapter cable (27610169)

      3 Communication adapter (27610165)

      4 Service tool harness cable (27610168)

      1

      4

      2

      3

      A

      HA0007

      22

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Passwords

      Factory passwords

      Factory passwords are required to perform each of the following functions:

      1  Program a new ECM

      When an ECM is replaced the system configuration parameters must be programmed into the new ECM. A

      new ECM will allow these parameters to be programmed once without factory passwords. After the initial

      programming these parameters are protected by factory passwords.

      2  Rerate to another engine family

      This requires changing the ECM software code, which is protected by factory passwords.

      3  Read customer passwords

      If the owner loses his customer passwords, he will not be able to program customer parameters. By using

      factory passwords, one can read customer passwords, then use those customer passwords to program

      customer parameters.

      4  Clear certain diagnostic codes

      Diagnostic code 253-02 Incorrect ECM software requires a factory password to clear the code. This diagnostic

      code should be cleared only if you are certain that the ECM software is for the specific engine.

      Caution: Operating the engine with ECM software not designed for that engine will result in engine damage.

      Be sure the ECM software is correct for your engine.

      5  Certain other codes require customer passwords. The majority of logged codes do not require passwords

      to be cleared. To obtain factory passwords, proceed as if you already have the password. At some point, if the

      factory passwords are actually needed, TIPSS-EST will request the factory passwords and display the

      information required to obtain the passwords.

      Customer passwords

      If customer passwords have been entered, they are then required to change ANY customer parameter.

      TIPSS-EST can be used to change customer parameters. To obtain customer passwords, contact the supplier

      of the equipment. If the owner has lost the passwords, customer passwords may be read by using TIPSS-EST

      (factory passwords are required in order to read customer passwords) by using the following procedure.

      1  In TIPSS-EST access "Passwords" under the "Information" menu.

      2  When the "Factory Password" screen appears, record the information listed.

      3  Obtain the factory passwords. The information recorded above must be provided, and generates a

      permanent record at Perkins of the access.

      4  From the "Factory Password" screen, enter the factory passwords.

      5  When the "View Customer Passwords" screen appears, record the customer passwords. The customer

      passwords may then be used to change customer parameters.

      Diagnostic Manual, TSD 3457E, Issue 2

      23

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Programming a new ECM

      The Engine Control Module or ECM is the brain of the system. When a problem occurs, it is easy to assume

      that the ECM is responsible. This is usually the wrong conclusion.

      Most failures occur at the wiring and connectors or at a sensor input/output. Follow the diagnostic test

      procedures and do not replace an ECM on speculation.

      However, when your diagnosis indicates that a failure has in fact occurred in the ECM, the following procedure

      outlines the steps required to replace a faulty ECM.

      Note: If an ECM replacement is required, the ECM parameters and injector trim codes can be transferred from

      the suspect ECM to the replacement ECM. This feature requires TIPSS-EST and is only possible if the suspect

      ECM can communicate with the TIPSS-EST.

      Replacing the ECM using TIPSS-EST ECM replacement feature

      Note: The Test ECM referred to below is another identical ECM to that fitted to the engine. There is no special

      Test ECM available.

      1  Ensure that the ECM is the problem by first temporarily connecting a test ECM. Hang the test ECM on the

      side of the engine. Flash program the identical software that was used in the suspect ECM into the test ECM.

      Use the TIPSS-EST ECM replacement feature to copy the parameter configuration of the suspect ECM into

      the test ECM. Ensure that the parameters in the test ECM are programmed the same as the parameters in the

      suspect one.

      2  If the test ECM repairs the problem, reconnect the suspect ECM. Check that the problem returns when the

      suspect ECM is reconnected.

      3  Select the ECM Replacement feature under the "Service/Copy Configuration" menu and load the

      parameters from the failed ECM.

      4  Temporarily connect the new ECM by connecting both ECM connectors. Do not mount the ECM on the

      engine yet.

      5  Flash program the ECM software into the new ECM if the software is not already installed.

      Note: The new ECM may be shipped with no software installed or may have been pre-flashed at the factory.

      Following reflashing the engine may be inoperable until a factory password has been obtained.

      6  Use the TIPSS-EST ECM replacement feature to program the new ECM

      7  Enter rating number parameter into the new ECM

      8  Check for active codes. Program any required parameters that have not been programmed.

      Note: On initial power-up of a new ECM, the Rating Number parameter must be programmed to avoid a

      268-02 Check Programmable Parameters diagnostic code.

      Install the new ECM on the engine and after checking for correct operation perform a timing calibration.

      24

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Replacing the ECM (if ECM replacement feature cannot be used)

      1  Ensure that the ECM is the problem by first temporarily connecting a test ECM. Hang the test ECM on the

      side of the engine. Flash program the identical software that was used in the suspect ECM into the test ECM.

      Program any parameters that are necessary to use the ECM for the test. Program the parameters exactly the

      same as they are in the suspect ECM.

      2  If the test ECM repairs the problem, reconnect the suspect ECM. Check that the problem returns when the

      suspect ECM is reconnected.

      3  Obtain customer parameters from the failed ECM

      Obtain and record the customer passwords. If the customer has lost or forgotten their passwords, obtain

      factory passwords to get them.

      Use TIPSS-EST to access customer specified parameters from the ECM that is being replaced. If the ECM

      does not communicate with the electronic service tool, obtain the required parameter list from the OEM.

      Record the customer parameters.

      4  Record ECM current totals

      5  Temporarily connect the new ECM by connecting both ECM connectors. Do not mount the ECM to the

      engine until the timing calibration has been performed.

      6  Flash program the software into the new ECM if the software is not already installed.

      Note: The new ECM may be shipped with no software installed, or may have been pre-flashed at the factory.

      7  Obtain factory passwords if required. The following parameters can be programmed once on a new ECM

      without factory passwords:

      Full Load Setting (FLS)

      Full Torque Setting (FTS)

      Engine serial number

      System configuration parameters must be entered before the customer specified parameters are entered

      If customer parameters are entered before the system configuration parameters, the total tattletale will change.

      It will then be necessary to obtain another set of factory passwords in order to access system configuration

      parameters.

      8  Record the following information from the engine information plate:

      Engine serial number

      Obtain the following information from the factory:

      Full Load Setting (FLS)

      Full Torque Setting (FTS)

      Injector Trim Codes

      Use TIPSS-EST to access system configuration parameters. When the "Factory Specified Passwords" screen

      appears record the following information:

      ECM serial number

      Engine serial number

      TIPSS-EST serial number

      Total tattletale

      Reason code

      Leave TIPSS-EST on the "Factory Specified Passwords" screen and obtain the factory passwords.

      Continued

      Diagnostic Manual, TSD 3457E, Issue 2

      25

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      9  Program the new ECM

      On initial powerup of a new ECM the following three parameters must be programmed to avoid a 268-02

      Check Programmable Parameters diagnostic code:

      Full Load Setting (FLS)

      Full Torque Setting (FTS)

      Engine serial number

      Use TIPSS-EST to access system configuration parameters. Enter the recorded values for the following

      parameters:

      Full Load Setting (FLS)

      Full Torque Setting (FTS)

      Engine serial number

      Injector trim codes

      Use TIPSS-EST to access customer specified parameters. Enter the customer specified parameters and the

      original customer passwords.

      Use TIPSS-EST to access current totals from the "Read/Change Current Totals" main menu. Using the

      recorded factory passwords enter the totals from the original ECM.

      Use the "Service\Calibrations\Timing Calibration" menu to calibrate the timing. Refer to Test 46: Engine

      speed/timing circuit test on page 126.

      10  Install the new ECM on the engine.

      26

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Programming an ECM using flash programming

      1  Connect the PC to the appropriate communication adapter and connect the communication adapter to the

      ECM. Refer to "Connecting TIPSS-EST using a TIPSS communication adapter" on page 22.

      2  Start the WinFlash PC Program.

      3  Ensure that the key switch is ON and the engine is OFF.

      4  Select the part number of the engine software that needs to be programmed into the ECM and proceed with

      programming. A new ECM is shipped with no software loaded.

      Note: The WinFlash PC program provides the ECM, application and software part number of the selected file.

      Ensure that this file matches the engine before you begin to Flash the file into the ECM

      PC program software messages and their meaning

      A new ECM comes unprogrammed. An unprogrammed ECM will prompt you for all three of the following

      messages. The information that is contained in the ECM Status will be scrambled and meaningless if the

      module has not been programmed previously (this is normal).

      Message: The engine ID in the flash file does not match the engine ID in the ECM

      Meaning: The ECM has software for a different engine.

      Solution: Stop the transfer and access information about the ECM Status under the "Electronic Control

      Module" menu. Ensure that the file you are about to transfer matches the engine application.

      Message: The application ID in the flash file does not match the application ID in the ECM

      Meaning: The ECM has software for a different application.

      Solution: Stop the transfer and access information about the ECM Status under the "Electronic Control

      Module" menu. Ensure that the file you are about to transfer is for the correct engine type.

      Message: The ID of the ECM in the flash file does not match the ID of the ECM in the ECM

      Meaning: The ECM is not for use with this application.

      Solution: Stop the transfer and access information about the ECM status under the "Electronic Control

      Module" menu. Ensure that the ECM on the engine is for the correct application.

      Note: If you access the ECM status under the "Engine Control Module" menu, but do not program the ECM,

      complete the following procedure.

      Turn the key switch to the OFF position, and then to the ON position before using TIPSS-EST. If the key switch

      is not cycled after reading the ECM Status, the ECM will not communicate with your service tool or will not start.

      Cycling the key switch is not necessary after the software has been successfully programmed using the

      WinFlash program.

      5  Start the engine and check for correct operation.

      Program any parameters not previously in the old software if a 268-02 Check Programmable Parameters

      diagnostic code is active. Read the diagnostic code from service tool "Active Diagnostic Code" screen in order

      to determine the parameter(s) requiring programming.

      On initial powerup of a new ECM three parameters must be programmed to avoid a 268-02 Check

      Programmable Parameters diagnostic code:

      Full Load Setting (FLS)

      Full Torque Setting (FTS)

      Engine serial number

      Refer to "Programming a new ECM" on page 24.

      Diagnostic Manual, TSD 3457E, Issue 2

      27

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      ECM date/time clock

      ECM date/time stamped information

      The ECM date and time can be programmed with the TIPSS-EST service tool (factory passwords are required

      to change these parameters). This will display the programmed date in month/day/year format and the

      programmed time in hour:minute:second format. The tool has the option to program any date/time or

      automatically select the date/time stored in the PC real time clock.

      The date and time will remain programmed in the ECM even if the unswitched battery connections are

      removed.

      The ECM Date/time clock is used to stamp the following critical event codes:

      360-3 Low oil pressure Shutdown

      361-3 High coolant temperature Shutdown

      Before adjusting the ECM date/time clock

      Before adjusting the ECM date/time clock, ask the owner/operator if the time stamped information should be

      recorded. After the time stamped information is recorded, clear this information before adjusting the ECM date/

      time clock. This is a very important step if the adjustment of the clock is a big adjustment. This will prevent

      unnecessary confusion if someone else views the information at a later date.

      Determining time stamped information occurrence

      When viewing time stamped information remember that someone may have incorrectly or never set the clock.

      Use the time currently set in the ECM to compare any ECM recorded information to the time the ECM indicates

      to determine how long ago the time stamped event occurred.

      Caution: Do not replace an ECM because of an incorrect time.

      The following example indicates the correct use of the clock.

      Example use of ECM date/time stamped information

      The TIPSS-EST service tool indicates a Low Oil Pressure occurred on NOV 19 1998 10:30:46 and that the

      current time of day in the ECM is NOV 24 1998 11:20:58.

      This indicates that the problem occurred approximately 5 days and 50 minutes ago.

      Caution: Do not compare it to the current time at your location.

      If the ECM time is significantly different than your current time, for example the wrong month is programmed,

      ensure you have recorded the time stamped information if it is important. After recording the information, clear

      the code and then adjust the clock.

      28

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      ECM diagnostic clock

      The diagnostic clock should not be confused with the ECM date/time clock. The diagnostic clock records the

      actual hours the ECM has been powered (key switch ON and engine running). This information is maintained

      even if the unswitched battery connections are removed. The clock information is used to log diagnostic code

      and event code occurrences. Logged diagnostic codes and event codes display the diagnostic clock hour of

      the first and last occurrence and the total number of occurrences.

      Note: Actual engine running hours (total time) can be obtained from the "Current Totals" menu of TIPSS-EST.

      Injector codes

      Injector codes are etched on each injector. The injector codes can be viewed/changed using TIPSS-EST by

      selecting the "Calibrations" screen under the "Service" menu. The injector codes calibration is located under

      the "Calibration" menu. The injector code must match the code on the corresponding injector. When an injector

      is replaced, reprogram the new code for the new injector.

      TIPSS-EST cylinder cut-out test

      The 2300 and 2800 Series engines use electronic fuel injectors. These injectors are mechanically actuated

      and electronically energized. The cylinder cut-out tests are used to confirm that the cylinders are functioning

      correctly.

      The cylinder cut-out test allows a specific cylinder to be cut out while the fuel position is monitored for the

      remaining cylinders.

      To perform a cylinder cut-out test, connect TIPSS-EST to the diagnostic connector as described in

      "Connecting the TIPSS-EST" on page 21, and select the Cylinder cut-out test located under the "Diagnostics"

      menu.

      The Cylinder cut-out test opens with the manual test. At the bottom of the TIPSS-EST screen there is a row of

      buttons that function as follows:

      Change toggles the highlighted cylinder between powered and not powered

      Power All returns all cylinders to the normal operating state

      Start initiates the automated Cylinder cut-out test.

      Stop terminates the automated test.

      Results displays the test results.

      Print allows the contents of the screen to be previewed or to be sent to a file or printer.

      Programming parameters

      Many programmable parameters affect engine operation. These parameters may be changed by using the

      TIPSS-EST service tool. The parameters are stored in the ECM. Whilst any parameter can be read, passwords

      can be used to protect parameters from unauthorized changes.

      Two categories contain these various parameters:

      System configuration parameters

      System configuration parameters can only be altered with factory passwords by using TIPSS-EST.

      Customer specified parameters

      Customer specified parameters can be changed by using the TIPSS-EST service tool (this may require

      customer passwords if customer passwords have been programmed). Refer to "Passwords" on page 13 for

      more details on how to receive and use factory and customer passwords.

      Diagnostic Manual, TSD 3457E, Issue 2

      29

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      System configuration parameters

      System configuration parameters affect critical settings for the engine. They are programmed at the factory

      and would normally never need to be changed through the life of the engine. A complete list of these

      parameters is given in the table on the following page.

      Note: System Configuration Parameters must be reprogrammed if an ECM is replaced. Failure to programme

      these parameters will result in a 268-02 Check Programmable Parameters diagnostic code.

      Proper values for these parameters are stamped on the engine information ratings plate located on the valve

      cover or air inlet manifold. Factory passwords are required to change these parameters. The following

      information is a description of the system configuration parameters.

      Full Load Setting (FLS)

      Number representing fuel system adjustment made at the factory to “fine tune” the fuel system. The correct

      value for this parameter is stamped on the engine information ratings plate. A new ECM requires this

      parameter to be programmed to avoid generating a 268-02 Check Programmable Parameters diagnostic code.

      Full Torque Setting (FTS)

      Similar to Full Load Setting. This parameter must be programmed to avoid generating a 268-02 Check

      Programmable Parameters diagnostic code.

      Software part number

      This is the part number of the software flashed into the ECM.

      Engine serial number

      This should be programmed to match the engine serial number that is stamped on the engine information plate.

      A new ECM is delivered without the engine serial number programmed.

      ECM serial number

      This is a read-only parameter which displays the serial number of the ECM.

      Software release date

      This parameter is defined by the ECM software and is not programmable. It is used to provide the version of

      the software. Customer parameters software changes can be tracked by this date. The date is provided in the

      month and year (NOV99), where NOV is the month (November) and 99 is the year (1999).

      Critical override switch installed

      The critical override switch, if fitted and enabled, allows the engine to continue running even if engine oil

      pressure or coolant temperature have reached the limits where the engine would normally be shutdown. If the

      engine is run in this condition, the engine warranty is void and any events occurring are stored in the ECM with

      time and date stamping. Implementation of this facility requires a factory password.

      Total tattletale

      Displays the total number of times the configuration parameters have been changed.

      30

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Configuration parameters

      Configuration Parameter Description

      R/W Security

      Selected Engine Rating

      Rating Number

      Customer

      Rated Frequency

      Read Only

      Read Only

      Read Only

      Read Only

      Read Only

      Customer

      Rated Genset Speed

      Rated Real Genset Power

      Rated Apparent Genset Power

      Engine Rating Application Type

      External Speed Selection Switch Installed

      ECM Identification Parameters

      Equipment ID

      Customer

      Factory

      Engine Serial Number

      ECM Serial Number

      Read Only

      Read Only

      Read Only

      Read Only

      ECM Software Part Number

      ECM Software Release Date

      ECM Software Description

      Security Access Parameters

      Total Tattletale

      Read Only

      Engine/Gear Parameters

      Engine Acceleration. Rate

      Droop/Isochronous Switch Installed

      Droop/Isochronous Selection

      Engine Speed Droop

      Customer

      Customer

      Customer

      Customer

      Factory

      Critical Override Switch Installed

      Digital Speed Control Installed

      Speed Control Min Speed

      Speed Control Max Speed

      Digital Speed Control Ramp Rate

      Crank Terminate Speed

      I/O Configuration Parameters

      Desired speed Arrangement

      System Parameters

      Customer

      Customer

      Customer

      Customer

      Customer

      Customer

      FLS

      Factory

      Factory

      None

      FTS

      Governor ProportionalGain

      Governor Minimum Stability Factor

      Governor Maximum Stability Factor

      Passwords

      None

      None

      Customer Password 1

      Customer

      Customer

      Customer Password 2

      Diagnostic Manual, TSD 3457E, Issue 2

      31

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Customer specified parameters

      Customer specified parameters allow the OEM to modify engine parameters to suit the application.

      Customer parameters may be changed repeatedly as a customer changes his requirements. Customer

      passwords are required to change these parameters.

      The following information is a brief description of the customer specified parameters.

      Rating duty selection

      This enables selection of the engine rating from a series of maps within the ECM. Changing the rating requires

      a customer password. The available ratings within the ECM will vary with engine type and specification.

      Rated frequency

      This displays the rated frequency of the set, i.e. 50 Hz or 60 Hz, determined by the rating selection and the

      status of the external speed selection switch. This parameter is read only.

      Rated speed

      This displays the rated speed of the engine, i.e. 1500 rev/min or 1800 rev/min, determined by the rating

      selection and the status of the external speed selection switch. This parameter is read only.

      Rated real genset power

      This displays the maximum power in kW of the currently selected rating. This parameter is read only.

      Rated apparent genset power

      This displays the maximum power in kVA of the currently selected rating. This parameter is read only.

      Rating configuration

      This displays the configuration of the currently selected rating. The possible configurations are:

      Standby power

      Limited time prime power

      Prime power

      Continuous or baseload power

      For definitions of these ratings, refer to ISO8528. This parameter is read only.

      Note: Not all of the above rating configurations will be available in a given ECM software file.

      External speed selection switch enable

      For dual speed (1500 rev/min or 1800 rev/min) applications, where an external speed selection switch is

      required, this parameter enables the functionality of the speed selection switch within the software. Changing

      this parameter requires a customer password.

      Engine startup acceleration rate

      Enables the acceleration rate of the engine in rev/min/s, from idle speed to rated speed, to be programmed.

      Control of this parameter enables any overshoot in speed on start up to be limited. Changing this parameter

      requires a customer password.

      Droop/isochronous switch enable

      Determines whether the external droop/isochronous switch is enabled or disabled. Changing this parameter

      requires a customer password.

      Droop/isochronous selection

      The engine will normally be run in isochronous mode i.e. the engine speed is the same at all loads. For certain

      applications where parallel operation with another generating set or with the grid is required, it is necessary for

      stability reasons to run in droop condition where engine speed drops with load. This parameter enables droop/

      isochronous running selection. Changing this parameter requires a customer password.

      Note:  , If an external droop/isochronous switch is enabled, the position of this switch will over-ride the Droop/

      Isochronous selection.

      32

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Engine speed droop

      If droop operation is selected, this parameter allows the setting of percentage droop i.e. the percentage that

      the engine speed will drop with load. This parameter has no effect when the engine is running in isochronous

      mode. Changing this parameter requires a customer password.

      Digital speed control installed

      This parameter determines whether raise/lower switch input control of engine speed is installed. If digital speed

      control is not installed, speed control reverts to the analogue or PWM inputs depending on which input is

      selected via the desired speed input configuration detailed on the following page. Changing this parameter

      requires a customer password.

      Digital speed control min speed

      This setting determines the minimum speed range of both the raise/lower button control and the analogue

      control, for example: if this is set to 100 rev/min and the nominal engine speed is selected for 1500 rev/min,

      the minimum speed setting is 1400 rev/min. It does not affect the PWM speed control range which has fixed

      min/max limits. Changing this parameter requires a customer password.

      Digital speed control max speed

      This setting determines the maximum speed range of both the raise/lower button control and the analogue

      control, i.e. if this is set to 100 rev/min and the nominal engine speed is selected for 1500 rev/min, the

      maximum speed setting is 1600 rev/min. It does not affect the PWM speed control range which has fixed min/

      max limits. Changing this parameter requires a customer password.

      Digital speed control ramp rate

      This setting determines the rate of change of engine speed in rev/min/s when the raise/lower switch inputs are

      closed. Changing this parameter requires a customer password.

      Crank terminate speed

      This parameter is used to set the engine speed at which the crank terminate relay output will be switched.

      Changing this parameter requires a customer password.

      Desired speed input arrangement

      This parameter allows selection of the analogue or PWM external speed control if the digital speed control is

      not installed. The Analogue or PWM speed control inputs are normally used with generating set load sharing

      and synchronising controllers. Changing this parameter requires a customer password.

      Note:  If PWM or Analogue speed control is selected but there are no inputs to the selected speed control

      terminals, the engine will default to running at 1100 rev/min.

      If it is not intended to use PWM or analogue speed control then the Digital speed control should be selected.

      Governor gain parameters

      The adjustable Governor Gain parameters are:

      Governor Gain Factor

      Governor Minimum Stability Factor

      Governor Maximum Stability

      Notes:

      No engineering units associated with these numbers.

      The programmable range is wide for flexibility. The values are valid from 1- 40000. This wide programmable

      range may not be fully used on any system. Do not expect to use the whole range.

      Diagnostic Manual, TSD 3457E, Issue 2

      33

      This document is printed from SPI². Not for RESALE


       

      3

      2300 Series

      Gain explanations

      Governor gain factor

      The governor gain factor is multiplied to the difference between desired speed and actual speed.

      If the governor gain factor value is too large, the engine speed can overshoot the desired speed. The

      overshoot is caused by an overcorrection or a steady state instability.

      If the governor gain factor is too small, the response necessary to accelerate the engine to the desired

      speed must be obtained by ramping the stability terms to a higher value. This process is time consuming

      so, as a result, the engine speed is slow to respond.

      Governor minimum/maximum stability factor

      The stability factor terms work to eliminate a steady state speed error. There are two gain terms used for

      stability. If the error is greater than 20 rev/min and the error is increasing, then the maximum stability gain is

      functioning. If the error is less than 20 rev/min, then the minimum stability gain is used. This function allows

      the use of a high gain that would otherwise cause the engine to be unstable when the engine is operating near

      the desired speed.

      If either the minimum stability gain or the maximum stability gain is set too high, the governor will provide

      more fuel than is necessary to bring the error to zero. The additional fuel will cause the engine speed to

      overshoot and ring.

      If either the minimum stability gain or the maximum stability gain is set too low, the engine will take too long

      to arrive at a steady state speed.

      Tuning procedure

      1  Turn the key switch to the OFF/RESET position. Connect the TIPSS-EST service tool and check that engine

      overspeed protection is enabled before beginning the tuning process. Engine overspeed is configured on the

      "Service\Monitoring System" screen on TIPSS-EST.

      Warning! Performing engine governor tuning without engine overspeed protection could result in serious

      engine damage. Ensure that this parameter is ON while performing this procedure.

      2  Start the engine. Observe, on the engine mounted genset control panel, that the engine has reached rated

      speed. This panel will serve as the speed reference point during this procedure.

      3  Enter the "Configuration Parameters" screen on TIPSS-EST.

      4  Determine the desired scenario to tune the engine. For example, is the engine having poor response during

      specific load assignments or specific load dumps ?

      5  Perform the desired load change from step 4. Observe the response of the engine by viewing the engine

      speed on the genset mounted control panel, by looking at the system bus frequency response to the load

      change, or by listening to the response of the engine.

      6  Use the suggestions listed above to determine which gains should be adjusted.

      Note: Usually, the governor gain factor should be somewhat lower that the governor minimum stability factor

      for optimum performance. The maximum stability factor is typically a smaller value than the minimum stability

      gain and governor gain factor.

      7  Repeat steps 5,6, and 7 until a desired engine response can be met. Use large adjustments (10% of original

      gain) at first to generally tune the engine in the proper manner. As the response is closer to desired, increase

      the gains in smaller increments (1% of total gain).

      Customer password 1, customer password 2

      These are the customer password programmable parameters that can be used to protect certain configuration

      parameters from unauthorised changes.

      34

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      2300 Series

      4

      Fault diagnosis

      4

      Introduction

      This chapter has information that will assist with the diagnosis of mechanical and electronic faults on the

      engine, and its management system.

      The diagnostic process

      Some engine symptoms are caused by conditions or components other than the electronic control system,

      such as poor fuel quality or incorrectly adjusted valves.

      The basic philosophy of diagnosing this engine is to follow the three steps listed below FIRST to diagnose a

      malfunctioning engine:

      1  Gather operator information. Check that the fault is not due to normal engine operation.

      2  Perform a visual inspection of the engine. Check fuel and oil level, supply and/or condition. Check for visible

      wiring and connector problems or damaged components.

      3  Check and repair all ACTIVE/LOGGED diagnostic codes using the diagnostic procedures given in

      "Diagnostic procedures with a diagnostic fault code" on page 76.

      If ALL three of these inspections reveal no problems, identify probable causes using the procedure or

      procedures in this chapter that best describes the symptoms. Narrow the probable causes given in the

      procedure by considering operator information, operating conditions, and repair history of the engine.

      Operator information

      What happened, and when ?

      Under what conditions ?

      Was the engine rev/min (speed) high or low ?

      Was the engine under load ?

      Are there any customer or dealer installed systems that could cause this symptom ?

      What else occurred ?

      When did the symptoms begin (and what else happened at that time) ?

      Logged diagnostic codes

      Do they correlate to probable causes ?

      Did they occur at the same time as the symptoms ?

      Are some codes logged repeatedly ?

      Other symptoms

      Are they related to this symptom ?

      Do they have common probable causes ?

      Finally, test each probable cause using the tests suggested by the procedure

      Be sure to check connectors, especially on intermittent problems. Refer to Test 39: Inspecting electrical

      connectors on page 82 for details.

      Diagnostic Manual, TSD 3457E, Issue 2

      35

      This document is printed from SPI². Not for RESALE


       

      4

      2300 Series

      Diagnostic procedures without a diagnostic fault code

      General information

      This section is to be used for diagnosing problems that have symptoms but do not have ACTIVE diagnostic

      codes.

      Before using this section, be sure that you have gathered information about the fault to adequately describe

      the symptoms, verified that the fault is not due to normal engine operation and repaired all ACTIVE diagnostic

      codes. Refer to "Diagnostic procedures with a diagnostic fault code" on page 76.

      36

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      4

      2300 Series

      Diagnostic symptoms

      Engine will not crank

      Test 1

      Note: This is NOT an electronic system problem, the engine starter motor wiring is not supplied by Perkins.

      Refer to the Workshop Manual and OEM Manual for additional information on the following tests.

      Probable root causes

      Battery cables/batteries

      Emergency stop switch

      Starter motor solenoid or circuit problem (in system wiring)

      Starter motor/flywheel ring gear

      Engine accessory

      Hydraulic cylinder lock

      Internal engine problem

      Perform the following tests

      1  Check battery post and battery cables for loose connections and corrosion. If corroded, remove and clean

      cables and connections. Check the optional battery disconnect switch.

      2  Check that the optional emergency stop switch is not engaged. Load test batteries. If necessary, charge the

      batteries.

      3  Test starter motor solenoid operation. Check the system wiring to starter motor solenoid.

      4  Test starter motor operation. Inspect starter motor pinion and ring gear for damage.

      5  Check that the timing pin was not left in the flywheel housing after setting valve clearances. Use the engine

      turning tool and attempt to manually turn the engine. If unable to turn the engine, remove and inspect engine

      accessories that can lock up the engine. Repair or renew as necessary.

      6  Remove injectors and check for fluid in the cylinders.

      7  Disassemble engine to inspect for internal components that may be seized, broken, bent, out of alignment,

      etc. Refer to the Workshop Manual.

      Diagnostic Manual, TSD 3457E, Issue 2

      37

      This document is printed from SPI². Not for RESALE


       

      4

      2300 Series

      Engine cranks but will not start

      Test 2

      Probable root causes

      Starting aids/fuel waxing (cold temperature operation)

      Electrical connectors and wiring

      ECM software or ECM

      Engine speed/timing signal

      Electrical connections to the unit injector solenoids

      Fuel supply

      Restriction of the air supply or exhaust

      Combustion problem

      Perform the following tests

      1  If cold ambient conditions exist, check operation of starting aids. Check the coolant immersion heater for

      malfunction and replace if required. Check for presence of congealed fuel (wax). Repair as required.

      2  Check that the keyswitch and Injection Disable switches are closed.

      3  Check for correct installation of the ECM connectors J1/P1 and J2/P2, engine speed/timing sensor

      connectors J401/P401 and J402/P402, and unit injector connectors J300/P300. Check that the ECM is

      receiving the correct voltage.

      Note: Aftermarket engine protection devices may interrupt power to the ECM and prevent communications

      with the TIPSS-EST service tool. Check for correct installation and operation of aftermarket engine protection

      devices. Aftermarket devices may need to be bypassed to continue.

      4  If the engine has an unprogrammed ECM it will crank but will not start. Access ECM Status in the WinFlash

      PC program and follow the request to program the software. Refer to "Programming an ECM using flash

      programming" on page 27. Failure to program the software will cause the engine to not start or communicate.

      Cycling the key switch will allow access to the WinFlash PC program.

      5  Check that none of the diagnostic lamps are illuminated. If any are, turn the key switch OFF and ON to try

      and clear the fault. If the diagnostic lamps cannot be cleared refer to "Diagnostic procedures with a diagnostic

      fault code" on page 76. Check that the speed/timing sensors are correctly installed and that no diagnostic

      codes are active.

      6  Check that there is not an active 268-02 Check Programmable Parameters diagnostic code. If the diagnostic

      code is present, refer to "Programming an ECM using flash programming" on page 27.

      7  Observe the engine speed on the TIPSS-EST "Status" screen while cranking the engine. If the electronic

      service tool displays 0 rev/min while cranking the engine, there is a problem in the engine speed/timing sensor

      circuit. Refer to Test 46: Engine speed/timing circuit test on page 126.

      If the engine speed is greater than 50 rev/min the engine speed/timing circuitry appears to be operating

      correctly. Check that the timing reference gear is installed correctly and keyed to the camshaft by means of

      the locating dowel. If the gear was installed backwards or flipped over during assembly, the engine will not

      start.

      8  Check the calibration of the timing sensor and recalibrate if required. Refer to Test 47: Engine speed/timing

      calibration on page 134. Check for correct orientation between crankshaft and camshaft drive gears, repair as

      required.

      9  Ensure the unit injector connectors are correctly installed. Refer to Test 48: Injector solenoids circuit test on

      page 138 and perform the Injector Solenoid test as a quick check to confirm that the ECM can energize the

      unit injector solenoids. Ensure that the injection disable switch (if fitted) is ON.

      10  Check for a fuel supply problem and check fuel pressure. Refer to Test 29: Engine has a fuel supply

      problem on page 65.

      11  Check for combustion problems.

      38

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      4

      2300 Series

      Engine misfires, runs rough or is unstable

      Test 3

      Note: If the problem is intermittent and cannot be recreated, refer to Test 6: Intermittent low power or power

      cut-outs on page 42. If the problem is consistent and can be recreated, continue with this procedure.

      Probable root causes

      Cold mode operation (normal operation, if the problem occurs only after start-up)

      Battery cables, battery

      Electrical connections to the ECM

      Loss of backup engine speed/timing sensor

      Throttle position signal

      Faulty electronic unit injector circuit (individual cylinder malfunction)

      Fuel supply

      Air inlet or exhaust restrictions or air system leaks

      Internal engine problem

      Note: If the problem only occurs under certain conditions (high engine speed, full load or engine operating

      temperature, etc), then perform the test under those operating conditions.

      Perform the following tests

      1  Check indicator lamps; refer to Test 39: Inspecting electrical connectors on page 82.

      2  Check for a fuel supply problem and check fuel pressure.

      3  Check air inlet and exhaust systems for restrictions and leaks. Look for a diagnostic lamp indication, or

      tripped restriction indicators (if fitted) associated with plugged air filters. Replace plugged air filters, or clean

      filters, as described in the User’s Handbook, and repair any leaks found. Also refer to Test 41: Analogue

      sensor open or short circuit test on page 91. Refer to the Workshop Manual if an internal engine problem is

      suspected.

      4  Monitor the TIPSS-EST "Status" screen to check that the engine has exited cold mode and observe the

      coolant temperature reading on the electronic service tool. The engine should exit cold mode operation

      whenever the coolant temperature is above 17 °C (64 °F) and the engine has been running for five minutes.

      5  Check battery post and battery cables for loose connections and corrosion. If corroded, remove and clean

      cables and connections.

      6  Check the ECM connectors J1/P1 and J2/P2, customer connector, engine speed/timing sensor connectors,

      unit injector connectors and associated wiring for damage, abrasion or incorrect attachment. Refer to Test 39:

      Inspecting electrical connectors on page 82.

      7  Check the battery connection at the customer connector and ECM connector. Perform a pull test on the

      customer connector. Perform a pull test on P1 pins 48, 52, 53, 61, 63, 65 and 70. The wires should remain in

      the connectors during pull test. Refer to Test 39: Inspecting electrical connectors on page 82.

      8  Check that a 190-11 Loss of Engine Speed Signal diagnostic code is not active. If the 190-11 code is active

      check to see if a 342-11 Loss of Backup Engine Speed Sensor diagnostic code has been recently logged. If

      the electronic service tool indicates that a 342-11 code has been recently logged perform a pull test on the

      wires to the backup engine speed/timing sensor. Refer to Test 39: Inspecting electrical connectors on page

      82. If a 342-11 code has not been recently logged and the 190-11 code is active refer to Test 46: Engine

      speed/timing circuit test on page 126.

      9  Connect an electronic service tool to the service tool connector. Turn the key switch to the ON position,

      engine OFF. If a PWM speed control is fitted, check that a 91-08 Invalid PWM Speed Control Signal diagnostic

      code has not been recently logged. Monitor the throttle position from low idle to full throttle.

      10  Check for active or recently logged injector solenoid diagnostic codes. Use an electronic service tool and

      cut out each cylinder at low idle to isolate the misfiring cylinder(s). Refer to Test 48: Injector solenoids circuit

      test on page 138.

      Diagnostic Manual, TSD 3457E, Issue 2

      39

      This document is printed from SPI². Not for RESALE


       

      4

      2300 Series

      Low power/poor or no response to throttle

      Test 4

      Probable root causes

      Customer specified parameters

      Cold mode operation (normal operation if the problem occurs only after start-up in cold weather)

      Engine is in a derated mode

      Electrical connections to the ECM

      External speed control

      Faulty electronic unit injector (individual cylinder malfunction)

      Fuel supply

      Intake manifold sensor signal

      Air inlet or exhaust system restrictions or leaks

      Incorrect adjustment of full load setting or full torque setting

      Note: If the problem only occurs under certain conditions (high engine speed, full load or engine operating

      temperature, etc), then perform the test under those operating conditions.

      Perform the following tests

      1  Check for a fuel supply problem and check fuel pressure. Refer to Test 29: Engine has a fuel supply problem

      on page 65.

      2  Check air inlet and exhaust systems for restrictions and leaks. Look for a diagnostic lamp indication, or

      tripped restriction indicators (if fitted) associated with plugged air filters. Replace plugged air filters, or clean

      filters, as described in the User’s Handbook, and repair any leaks found.

      3  Check that the fault is not normal (programmed parameter) operation. Connect an electronic service tool

      and check the system/customer parameters. If a 268-02 Check Customer Or System Parameters diagnostic

      code is active, ensure ALL the system and customer parameters are programmed. Check that the injector

      codes are programmed. Check that the correct rating is programmed.

      4  Monitor the electronic service tool "Status" screen to check that the engine has exited cold mode. Observe

      the coolant temperature reading on the electronic service tool. The engine should exit cold mode operation

      whenever the coolant temperature is above 17 °C (64 °F) and the engine has been running for five minutes.

      5  The engine may be derated due to altitude or other factors. Connect an electronic service tool and check for

      active engine derates or diagnostic codes.

      6  Check the ECM connectors J1/P1 and J2/P2, customer connector and the relevant speed setting inputs and

      associated wiring for damage, abrasion or incorrect attachment. Refer to Test 39: Inspecting electrical

      connectors on page 82.

      7  If a PWM speed control is fitted, connect an electronic service tool to the service tool connector. Turn the

      key switch to the ON position, engine OFF. Check that a 91-08 Invalid PWM Speed Control Signal diagnostic

      code has not been recently logged. Monitor the PWM input. The duty cycle should be between 5 and 10

      percent at low load and increase at full load. If the throttle position change is erratic or out of range the problem

      is with the external speed control.

      8  Check that a 262-03 +5 V Supply Above Normal or a 262-04 +5 V Supply Below Normal diagnostic code is

      not present. If either of the codes are active refer to Test 41: Analogue sensor open or short circuit test on

      page 91.

      40

      Diagnostic Manual, TSD 3457E, Issue 2

      This document is printed from SPI². Not for RESALE


       

      4

      2300 Series

      Intermittent engine shutdowns

      Test 5

      Note: Use this procedure only if the engine has shut down completely and has had to be restarted.

      Probable root causes

      Customer specified parameters

      Electrical connections to the ECM

      Faulty electronic unit injector connector

      Engine fault

      The ECM detects an engine fault, e.g. low oil pressure, etc. These fault codes may be viewed on the display

      modules or an electronic service tool. They are logged in memory except as noted.

      Note: If the problem only occurs under certain conditions (high engine speed, full load or engine operating

      temperature, etc), then perform the test under those operating conditions.

      Perform the following tests

      1  The engine may be shut down due to low pressure levels, or other factors. Connect an electronic service

      tool and check for active engine derates or diagnostic codes.

      2  Check the ECM connectors J1/P1 and J2/P2, customer connector, engine speed/timing sensor connectors

      and the unit injector connectors and associated wiring for damage, abrasion, corrosion or incorrect attachment.

      Refer to Test 39: Inspecting electrical connectors on page 82 for additional information.

      3  Check the electronic service tool for a logged 168-02 Intermittent Battery Power to the ECM diagnostic code.

      Check the battery connection at the customer connector and the ECM connector. Refer to the electrical

      schematic. Perform a pull test on the customer connector. Perform a pull test on P1 pins 48, 52, 53, 61, 63, 65

      and 70. The wires should remain in the connectors during the pull test. Refer to Test 39: Inspecting electrical

      connectors on page 82.

      4  If the problem occurs only after the engine is warmed up and disappears after the engine has been allowed

      to cool, the circuit breakers may be exceeding the trip point because of overheating. Check the circuit breakers

      on the engine, reset if required.

      Note: Aftermarket engine protection devices may interrupt power to the ECM. Check for correct installation

      and operation of aftermarket engine protection devices. Aftermarket devices may need to be bypassed to

      continue testing.

      5  Check switch status on an electronic service tool. If the switch status is incorrect, refer to "Machine wiring

      diagram (all options)" on page 18.

      6  Check for a fuel supply problem and check fuel pressure. Refer to Test 29: Engine has a fuel supply problem

      on page 65.


       

      免費熱線
      400-100-8969???15088860848
      機組銷售
      0574-26871589? 15267810868
      配件銷售
      0574-26886646? 15706865167
      維修熱線
      0574-26871569  18658287286
      手機端
      微信公眾號
      在線客服
      97资源免费观看视频在线观看,97婷婷大香蕉,男女激情内射免费观看,成 人3D动漫在线观看网站
      欧美v亚洲v综合ⅴ国产v 人妻在夫面前被性爆 日韩精品 国产精品 欧美精品 暖暖直播在线观看免费韩国 国产乱码精品一区二区三区四 亚洲a∨中文字字幕乱码 亚洲欧美熟女一区二区 2020无码专区人妻系列日韩 一二三四在线视频2 内射白嫩的小少妇33p 蜜桃av麻豆一区中文字幕 久久久久久久国产精品成人热 国产成人一区二区国产 国产高清欧美情侣视频 粗大的捧猛烈进出高潮视频 国产精品挑色在线 亚洲岛国av天堂 91人人妻人人澡人人爽人人 在线成H人视频免费 欧美亚洲午夜影院 欧美日韩一卡2卡三卡4卡新区 农村野外强奷在线播放电影 尤物视频日本aa大片 男人色噜噜噜在线 国内精品视这里只有精品 人人妻人人澡视频 亚洲精品中字中出无 漂亮的人妻醉酒被同事玩弄全 精品亚洲成av人在观看 亚洲性无码AV在线DVD 欧美日韩国产高清一级黄片 亚洲午夜少妇av毛片: 国产欧美日韩综合久久婷婷 av永久免费在线播放 小说一区二区图片视频 一万部小泑女视频...导航网站 久久精品亚洲影院 午夜无遮挡免费视频 免费a级毛片: 最新国产视频一区二区三区 91精品国产综合久久香蕉网 国产一区二区三区中文视频 久久精品这里只有久久精品 日本AAAAA级特黄大片 国产女人喷水视频在线观看 日韩精品国产精品欧美精品 亚洲经典三级av 深夜福利免费卫生纸请准备 网禁国产YOU女网站 日本免费网站2021年能用的 黄色视频毛片a级 在线观看亚洲无人码 交换娇妻性中文字幕 欧美日本不卡视频 国产午夜精品理论片免费观看 CHINESE 妇女丛林 久久精品国产亚洲av高清w 国产成人精品一区91 久操视频在线观看精品 尤物国产免费av在线观看 国语对白国产乱子伦视频大全 国产亚洲精品线观看K频道 av亚州av 最新69国产成人精品3p人妻 男女激情床震呻吟视频链接 成人精品国产永久免费网站 av在线影片 亚洲66av 十八禁免费在线网站 特级婬片女子高清视频 国产综合色产在线精品 97国产精品久久久久久超粗 亚洲午夜少妇av毛片: 日韩av毛片网站 天堂在线资源中文6 久久大香伊蕉在人线国产H 日本欧美视频人在线视频 国产精品嫩草影院99a 欧美在线成人观看视频 欧美成人四级中文字幕 东京复仇者在线观看 亚洲欧美有码无 三级a黄色毛片 亚洲国产精品自在线一区二区 性生大片免费观看性 特a级黄色毛片 精品香蕉官网在线观看 免费日韩av网在线观看 国产在线观看男天堂 波多野结衣一二三区免费 欧美人与黑人交性 少妇人妻在线一卡 上司部长出轨漂亮人妻 日韩高清不卡av在线 国产免费牲交视频免费下载 久青草国产手机在线观看 正在播放极品女神被啪啪 高清中文字幕一区二区三区 欧美日韩亚洲视频一区二区三区 人人妻人人澡视频 操的高潮喷水在线播放 午夜免费爱爱视频 免费操人妻一区二区 国产欧美另类久久久精品不卡 人人爱人人做人人干 爱爱摸摸动态图 а√在线天堂官网 国产日韩欧美第一涩 不卡一级黄色视频 欧美风情亚洲精品 好紧真爽喷水高潮视频办公室 国产高清欧美情侣视频 亚洲另类熟女国产精品 永久黄网站色视频免费品善网 精品亚洲午夜久久久久 少妇熟女精品 少妇人妻99久久 久久无人码人妻一区二区三区 欧美成人四级中文字幕 苍井空被躁2小时在线观看 亚洲最大成网人站亚洲ADC 久久久人妻91久久久 国产在线永久免费视频m 天天碰日日干夜夜操 美女毛片亚洲 日本熟妇人妻系列专区 亚洲精品国产a久久久 AV电影网站 久久精品国产专区 欧美日韩国产高清一级黄片 女神被啪到深处受不了视频 a级毛片99久久 女人被爽到呻吟的视频 亚洲中文字幕乱码在线视频 人妻久久精品天天中文字幕 高级会所人妻互换 寂寞影院一区二区三区 波多野结衣作品一区二在线观看 成人纯h小说网站 中文字幕亚洲无线码区女同 日韩欧美中文字幕五月婷 AV第一福利在线导航 悠悠久久亚洲 在线天堂最新中文网 国产午夜精品理论片免费观看 67194老司机午夜影院 女神被啪到深处受不了视频 欧在线一二三四区 欧美精品不卡一区二区三区 精品视频在线观看中文字幕 亚洲欧美国产视频在线观看 美女隐私尿口视频网站 日本大尺度岛国视频在线观看 色伊人亚洲乱码 99久久国产综合免费精品 亚洲欧美中文日韩二区 不卡的av影片 欧美亚洲国产大片 国产亚洲成av人片在一线观看 国产激情av女片自拍 午夜免费爱爱视频 99久久精品国产一区色 久久精品亚洲影院 国产av大香蕉 色婷婷av一区二区三区久久 黄片日韩欧美 水蜜桃无码视频人在线观看 国产成人精品一区91 老妇女BBwββwBBWBB 中文字幕在线91 国产精品va在线 国产老熟女aⅴ 免费在线看黄色的网站 中国毛茸茸BBXX 色婷婷久综合久久国产午夜精品 亚洲电影国语对白 天天狠天天透天干天天怕处 免费观看深夜女人嗷嗷叫av 成年女人免费影院 日本高清色视频网址 香蕉视频国产在线看 日韩av电影在线看一区二区 yjizz国产大全视频 亚洲va欧美va人人爽久 日本熟妇美熟BBW 边吃奶亚洲一区二区 男人天堂大片 国产精品视频一区二区高潮 一级精品中文毛片 成 人免费播放1000部 中文字幕熟女av 亚洲欧美日韩综合三区 国产成人精品免费视频大全 CHINESE 妇女丛林 国产国拍亚洲精品永久 久久av中文1区 日本一二三区免费 116美女写真 亚洲av在线观看电影 久久99国产成人亚洲精品jk 成人免费av高清在线观看 白丝班长深夜被啪到娇喘不停 国产精品福利视频在线观看 美女隐私羞羞视频在线观看 日韩专区亚洲 久久这里只有精品666 国产老熟女激情露脸 国产成人精品一区二区a 亚洲国产精品天堂一区二区三区 夜夜做夜夜爽夜夜摸 国产影片中文字幕久久 在线视频一区二区三区在线播放 亚洲最大成网人站亚洲ADC 亚洲图片自偷自拍 国产免费一级一片粉嫩 人妻熟女最新精品少妇 亚洲国产精品自在线一区二区 国产午夜精品理论片免费观看 狠狠噜天天噜日日噜视频跳一跳 欧美色网站在线观看视频 亚洲高清国产拍精品闺蜜合租 亚洲av激情电影在线 少妇被黑人整得嗷嗷叫 japanese国产真实乱 国产日产成人精品一区二区三区 丁香六月男人天堂 午夜131美女爱做视频 2020女厕偷拍25名美女 国产精品一区二区在线现看 亚洲av色图在线播放 免费日韩av网在线观看 欧美一区二区三黑人 久久国产精品人人看av 国产精品国产三级国av中文 扒开老女人毛茸茸的黑森林 国产成人精品一区二区a 久久8精品亚洲 一个人免费观看在线播放 亚洲经典三级av 精品亚洲成av人在观看 亚洲国产另类欧美 av在线不卡观看一本 看黑人巨大精品欧美一区二 熟妇人妻无码中文字幕老熟妇 中国XXXXY 国产精品区久久久 无遮挡边吃奶边做刺激视频呻 免费日韩av网在线观看 午夜影院①区 青青草原精品在线观看 午夜影院①区 国产做a爰片久久毛片al 熟妇草逼视频 亚洲性无码av在线欣赏网 AV老司机午夜福利片免费观看 综合国产日韩欧美在线播放 99久久精品费精品蜜臀av 免费黄色在线视频网站 澳门永久AV免费网站 精品国产麻豆一区二区av片 欧美日韩高清有码 久久久久国产刺激毛片 2020无码专区人妻系列日韩 亚洲经典三级av 黄片日韩欧美 特a级黄色毛片 在线观看国产精品av 无码制服丝袜人妻OL在线视频 五十熟女人妻视频一区二区 中国人与黑人牲交FREE欧美 亚洲午夜影院在线观看 午夜激情不卡视频 久久国产精品国产精品99 国产精品三级在线观看三级 波多野结衣一区二区三区高清 极品粉嫩国产免费观看 午夜不卡的av 中国XXXXY 在线成H人视频免费 国片av国产精品 在线看国产精品三级在线 极品粉嫩学生国产在线 久久这里都是精品6 亚洲a∨中文字字幕乱码 av亚洲天堂电影 丰满人妻一区二区三区53视频 丰满人妻一区二区三区53视频 美女的高潮视频网站 JLZZ大全高潮多水 亚洲精品国产a久久久 久久精品四虎av 精品综合亚洲国产另类 久久伦理三级 亚洲精品一区二区三成 国产波多野结衣一区二区 人妻久久精品天天中文字幕 国产精品40熟女一区二区 av在线免费观看国产精品 91av午夜在线 妺妺窝人体色WWW看美女 国产亚洲一区二区三区精品 欧美日韩一区二区在线观看国产 美女脱18以下禁止看尿口网站 被男狂揉吃奶胸60分钟视频 特a级黄色毛片 精品国产三级a在线观看网站 国产高清真实破学生处 天堂а√在线中文在线官网 亚洲一道本av网站在线 无码小电影在线观看网站免费 精品熟女一区 最新国产视频一区二区三区 亚洲欧美人成影视在线 亚洲最大av电影网 九阳真经18视频九阳真经免费 老熟妇乱又伦 无码少妇一区二区浪潮av 亚洲欧美日韩乱码人妻精品 久久人人爽人人爽人人片宅男 上了漂亮少妇视频在线观看 色婷婷av一区二区三区久久 99久久999久久久精品综合 日本高清色高清 精品爆白浆一区二区三区 午夜性刺激免费看视频 欧美亚洲午夜影院 不卡一级黄色视频 一区二区在线精品观看 农村野外强奷在线播放电影 在线看国产精品三级在线 亚洲av永久码av激情 久久大香伊蕉在人线国产H 无码黄动漫在线观看 又黄又硬又爽的视频 不戴套交换系列17部分吴琴 国产黄色的视频免费看 欧美国产激情一区二区三区 免费a级毛片10禁网站免费 无码无遮拦午夜福利院 亚洲国产另类欧美 国内A片无码无删减版电影 国产视频看看一区二区三区 国产亚洲av人片在线观看成人 女人张开腿让男桶喷水高潮 在线观看日韩三级网站 久久乱69小说 上司部长出轨漂亮人妻 蜜臀av国产尤物一区 国产视频看看一区二区三区 日本熟妇人妻XXXXX野外 伊人久久大香线蕉最新章节 在线观看av不卡 午夜福利国产精品 狠狠久av北条麻妃xxx 粉嫩精品国产尤物在线观看 国产熟女高清 午夜性刺激免费看视频 国产欧美日韩黄片 欧美交性又色又爽又黄麻豆 人妻3p精品视频 中国人与黑人牲交FREE欧美 久久综合精品国产二区无码 毛片av免费 美女脱18以下禁止看尿口网站 波多野结衣乱码中文字幕 JAPANESE黑人极品 日韩欧美成人免费 天堂√中文在线官网在线 国产成_人_综合_亚洲_国产 东京复仇者在线观看 免费日韩av网在线观看 99久久精品久久久久清纯 欧美极品在线第一页 边摸边脱边吃奶边做视频 国产久久精品久久 国产精品综合亚洲av久久 久久精品爽人妻 国产精品私拍在线观看 韩国公妇里乱片A片中文字幕 扒开老女人毛茸茸的黑森林 CHINESE多姿势VIDEO 欧美色网站在线观看视频 男女免费视频网站www 免费黄色在线视频网站 2020人妻中文字幕在线乱码 国产精品入口在线免费观看 别揉我奶头嗯啊~啊视频网站 韩国免费A级作爱片免费观看中国 超帅男生同志TWINKS视频 在线观看中文字幕激情网站 亚洲欧美有码无 色哟哟国产成人精品免费 啪啪免费福利午夜 久久国产精品一二 欧美精品第六区 亚洲精品一区二区三成 国产亚洲精品线观看K频道 久久乱69小说 免费国产伦精品一区二区三区 色呦呦网站在线观看 777在线欧美 97视频在线观看网站 真实国产乱子伦沙发睡午觉 国产乱老熟老熟女 新亚洲一区在线观看 av有码在线天堂 国产午夜福利精品在线观看不卡 japanese国产真实乱 精品国产麻豆一区二区av片 久久精品亚洲激情 2021在线精品自偷自拍无码 女人性高朝床叫视频尖叫声 甜味弥漫JK制服自慰VIP 久久国产一区二区四区 性生大片30分钟免费观看 少妇高潮动图 欧在线一二三四区 国产极品女主播国产区 2020女厕偷拍25名美女 老湿机免费体检区无需下载 国产乱子伦普通话对白 2019亚洲欧美日韩在线 欧美日韩手机不卡在线 午夜理论2019理论无码 午夜亚洲国产理论片中文飘花 国产超碰人人爽人人做 日韩麻豆av中文字幕在线观看 黄色三级国产 中文字幕一区二区三区在线播放 国产乱子伦普通话对白 妺妺窝人体色WWW看美女 中文字幕天堂av 久青草国产手机在线观看 午夜福利福利视频 国产人伦真实精品视频 禁止的爱善良的未删减版在线播放 精品国产福利网站 老湿机免费体检区无需下载 性欧美第一页 欧美日韩精品一区二区中文字幕 国产另类熟女 亚洲欧美日韩久久中文字幕 久久伦理三级 激情偷乱人伦小说免费观看 在线观看91中文字幕 影音先锋新男人AV资源站 中文字幕在线免费91 7777精品久久久久久 三级a黄色毛片 黄色三级国产 欧美亚洲综合在线中文字幕 午夜欧美精品久久久久久久久 国产亚洲欧美bt 久久国产精品一二 国产裸体歌舞一区二区 国产色在线一区 日本的黄色视频网站免费 久久国产精品久久精品 中国毛茸茸BBXX 男女18禁啪啪无遮挡剧烈 亚洲精品乱码国产精品乱码 亚洲av永久天码精品天堂dl 亚洲精品乱码国产精品乱码 h动画网站在线观看 AV电影网站 五月激情麻豆 国产又爽又色的精品视频 啪啪人妻一区视频 扒开双腿疯狂插入爽爽爽视频 欧美日韩亚洲视频一区二区三区 av高潮喷水在线 国产成人+综合+亚洲欧美 黄色毛片免费孕妇 好男人官网高清免费观看视频 午夜一级在线免费观看 成人av网址一区二区三区 亚洲伊人av综合 久久久久久久午夜视频 国产日韩AV免费无码一区二区 女生黄18禁无遮挡免费 国产国内久久精彩国语对白视频 白丝班长深夜被啪到娇喘不停 怡红院国产亚洲 久久精品四虎av 国产亚洲精品线观看K频道 2021国产精品一区二区22 上床视频在线观看国产 中文字幕亚洲无线码区女同 黄色理论视频在线观看 国产成人一区二区三区,欧美日韩国产 黑人插入美女视频 国产精品区久久久 国产欧美日韩黄片 成人av网址一区二区三区 欧美交性又色又爽又黄麻豆 亚洲嫩草影院 免费av不卡国产 FREEXXXXHD国语对白 999欧美精品一区二区三区 日韩免费av电影网址 国产女人喷水视频在线观看 各类成人av片在线观看 两个人韩国免费完整 日本中文字幕人妻不卡dvd_ 亚洲伊人av综合 av亚州av 操的高潮喷水在线播放 亚洲国产精品8x 大色妞在线视频 av无码av在线a∨天堂 国产欧美区一区二区三区 亚洲欧美国产专区一区国产亚洲视频 国产成人久久综合一区 亚洲欧美国产专区一区国产亚洲视频 国产色窝在线 欧美色网站在线观看视频 欧美精品在线观看一区二区 高清中文字幕在线咪咪爱 女人与公拘交的视频A片 午夜麻豆福利片 丰满熟女乱又伦 尤物av永久 尤物网红麻酥酥极品自慰 日韩人妻熟女一区二区三区 成人精品国产永久免费网站 久久av免费大片 中文有码人妻熟妇 亚洲中文无码H在线观看 成人av看看永久免费发布 亚洲成人日韩在线观看 久久久人人人人 97婷婷大香蕉 女人被日高潮视频 久久国产一区二区四区 欧美日本在线视频播放 67194老司机午夜影院 欧美成人性video 中文字幕在线免费91 国产精品综合亚洲av久久 国产亚洲精品乱码久久久久久 边摸边脱边吃奶边做视频 亚洲精品国产av成拍色拍 撕开奶罩揉吮奶头视频免费 美女扒开腿让男人桶爽免费 亚洲AV日韩AV永久无码 色猫咪免费人成网站在线观看 女人张开腿让男桶喷水高潮 亚洲av色图在线播放 91久久精品人妻中文字幕 天堂a中文在线资源库 免费人成网站视频在线观看不卡 欧美人与黑人交性 国产在线欧美一区二区三区 高潮喷水av在线 野花视频在线观看高清在线 国语乱码一二 2021国产精品一区二区22 蜜桃视频黄片! 日本熟妇人妻XXXXX野外 日本的黄色视频网站免费 国产精品高清在线看 人妻少妇精品天堂毛片在线 国产熟女一区二区三区黄 丁香六月男人天堂 国产av大香蕉 公交车被CAO得合不拢腿 免费AV网站 日本系列有码字幕中文字幕 大色妞在线视频 一级黄色片免费播放 免费观看全部的毛片 国产一区二区在线影院 亚洲国产成全部在线精品 亚洲中文字幕乱码在线视频 91麻豆精品人妻一区二区 色噜噜狠狠一区二区三区四区偷拍 国产亚洲精品aaa在线观看 色老头精品影院 国产精品欧美日韩电影 国产精品99精品一区二区三 一本色道久久高清精品网站 午夜男人的天堂网 日韩欧美成人免费 欧美精品一区二区精油 一级a级片毛片 蜜桃视频黄片! 国产另类丝袜欧美在线 国产精品导航网站 亚洲av成人精品国产 亚洲国产精品自在线一区二区 成人免费在线播放av 人妻激情偷乱视频一 青青草午夜影院 上床视频在线观看国产 久久伊人精品色婷婷国产 97久久超碰国产精品 欧美激情日韩国产在线播放 国产在线欧美一区二区三区 国模精品一区二区 国产丝袜制服诱惑av 无码小电影在线观看网站免费 99热在线精品这里只有精品 俄罗斯victory day青年 婷婷久久青草综合 99久久国产综合免费精品 黑色丝袜美美女被躁翻了 蜜臀av国产尤物一区 午夜网址观看 亚洲电影国语对白 美女黄是视频免费看 在线观看日韩三级网站 免费日韩av网在线观看 三级a黄色毛片 凹凸精品熟女 色婷婷久综合久久国产午夜精品 h动画网站在线观看 国产亚洲精品ⅴa在线观看 亚洲熟女在线精品一区 人妻熟女av免费一区二区三区 被男狂揉吃奶胸60分钟视频 中文有码人妻熟妇 一区二区亚洲精品国产av 少妇又粗又爽又猛又黄 国产免费av电影不卡 中文在线а√天堂官网 黄片日韩欧美 羞羞影院午夜男女爽爽应用 怡红院国产亚洲 亚洲AV无码片一区二区三区 亚洲av色婷婷精品久久 亚洲欧美日韩精品二区 禁止的爱善良的未删减版在线播放 黄色理论视频在线观看 99久久久区一区二区三 水蜜桃无码视频人在线观看 日本一本高清中文字幕视频 国产精品va在线 亚洲欧美V国产一区二区三区 五月天国产成人AV免费观看 人妻3p精品视频 国产精品久久一卡二卡 午夜不卡的av 综合国产日韩欧美在线播放 丰满人妻一区二区三区53视频 国产亚洲成av人片在一线观看 中文一区二区字幕欧美 99热这里只有精品店 中文字幕91在线视频 a级毛片在线 欧美国产激情一区二区三区 国产色在线一区 最新中文字幕永久视频播放 五月天国产成人AV免费观看 三男一女伦交过程 国产激情一区二区三区在线播放 天天干天天操夜夜曰 一卡二卡三卡免费看 国产毛片精品一区二区在线 国产av黄麻豆 国产精品三级在线观看三级 男人女人特黄视频 亚洲成年人网站在线观看 久久婷婷人人爽 啪啪免费福利午夜 美女视频免费永久观看的网站 美女隐私尿口视频网站 日本一二三区免费 美女脱18下禁止看禁止观看 一区二区三区欧美成人 1024看片你懂的国产 国产亚洲人成在线网站 亚洲国产精品自在线一区二区 国产精品福利视频在线观看 欧美风情亚洲精品 放荡人妻全记录1一19 CHINESE多姿势VIDEO 天堂在线资源中文6 亚洲图片自偷自拍 亚洲中文有码字幕在线 亚洲天堂精品人妻 中文字幕av亚洲无线码天堂 各类成人av片在线观看 色欲香天天天综合网站无码 91香蕉亚洲精品国产 欧美日本在线视频播放 精品香蕉官网在线观看 免费AV网站 凹凸国产精品熟女视频 亚洲中文字幕乱码在线视频 CHINESE乱子伦XXXX 啪啪在浴室边摸边吃奶边做大全 天堂a中文在线资源库 少妇高潮动图 亚洲av成人在线影院 在线观看中文字幕激情网站 禁止的爱善良的未删减版在线播放 亚洲中文字幕在线免费 国产色在线一区 成年裸男自慰GV网站 7777精品久久久久久 视频二区亚洲欧美日韩 女人性高朝床叫视频尖叫声 亚洲中文高清字幕在线播放 久久精品有码中文字幕1 啪啪免费福利午夜 交换配乱吟粗大农村大坑性事 边吃奶亚洲一区二区 免费一级做a爰片性色毛片 中国av所有黄片播放 西欧a级毛片 91麻豆精品人妻一区二区 久久大香伊蕉在人线国产H 爆乳美女脱内衣裸体视频网站 成 人3D动漫在线观看网站 多人伦精品一区二区三区视频 本网站中文字幕在线视频 99久久久区一区二区三 婷婷久久青草综合 永久黄网站色视频免费品善网 午夜无遮挡免费视频 极品少妇的粉嫩小泬视频 67194老司机午夜影院 熟女人妻精品一区二区三区 国产视频午夜福利 久久黄色精品免费 中国av所有黄片播放 又色又爽又黄的视频大片 亚洲性无码av在线欣赏网 亚洲熟妇自偷自拍 日韩高清在线一区观看 欧美一区二区三黑人 亚洲欧洲精品中文字幕不卡 亚洲最大AV资源网在线观看 午夜性刺激免费看视频 久久精品伊人久久精品 jizz在线观看国产精品 国产av黄麻豆 亚洲二区欧美精品 99久久精品久久久久清纯 欧美精品成人区一区二区三 午夜情深深 JAVA性无码HD 伊人加勒比久久av 国产精品私拍在线观看 韩国理论片在线观看2828 国产三级一区二区三区在线观看 国产日韩av高清在线不卡 国产成人精品亚洲79 97精品国产高清一区二区三区 亚洲另类春色国产精品 久久精品国产影片 亚洲国语对白在线精品一区在线 污18禁图无遮挡开腿 欧美一区二区激情电影 国产乱码精品一区二区三区粉嫩 日韩幕无线码一区中文 日本一二三区免费 熟女亚洲精品 中文在线天堂高清免费 国产精品福利视频在线观看 久久91中文字幕 日本免费一区二区三区激情视频 女人被爽到呻吟的视频 精品国产麻豆一区二区av片 久久这里只精品国产免费9 欧美v亚洲v综合ⅴ国产v 高级会所人妻互换 午夜福利国产精品 中文字幕人妻少妇在线视频 国产精品亚洲一区二区在线 a级毛片99久久 一区二区亚洲精品国产av 97视频在线视频免费观看 亚洲伊人av综合 国产精品久久亚洲一乱 欧美精品在线观看一区二区 岛国v免费观看视频 成年女人黄小视频 亚洲av午夜精品久久看一区 久久精品有码中文字幕1 天堂久久亚洲精品 日本免费电影一区二区 一本一本久久A久久精品综合不卡 亚洲图片自偷自拍 CHINESE乱子伦XXXX 中文在线天堂高清免费 欧美激情亚洲在线 国产视频乱来 日本熟妇人妻系列专区 欧美日韩精品一区二区中文字幕 精品亚洲999 一区二区国产亚洲 久久综合爱一本一本 日韩精品国产高清在线观看 国内精品免费在线视频 性AV无码天堂VR专区 国产超碰人人爽人人做 亚洲精品国产av成拍色拍 新亚洲一区在线观看 日韩亚洲成人一区二区 久久精品国产专区 在线观看日韩三级网站 日韩精品一级黄色 日韩人妻一区二区av 午夜131美女爱做视频 亚洲老熟女在线观看 伊人99热热 欧美日韩亚洲视频一区二区三区 麻豆国产精品va女在线观看 一个人免费视频在线观看 国产色在线导航 国产精品三级在线观看三级 国产精品泄火熟女 午夜不卡在线观看 黄色欧美视频网 三级日韩电影一区二区 18禁成人国产又黄又爽 草莓视频在线成人WWW 国产成人欧美精品在线播放 日本色惰视频 午夜情深深 国产成人一区二区国产 JAPANESE黑人极品 国产高清欧美情侣视频 中国毛茸茸BBXX 国产老熟女aⅴ 久久黄色精品免费 色婷婷噜噜久久国产精品12p 国产熟女一区二区三区黄 亚洲国语对白在线精品一区在线 国产免费牲交视频免费下载 国产亚洲精品欧洲在线 婷婷色婷婷开心五月四房播播 yjizz国产大全视频 国产91麻豆精品成人一区 日本高清色高清 日韩精品 国产精品 欧美精品 超碰在线人妻干 精产国品久久一二三 亚洲激情欧美另类 久久中文字幕久久 欧美成人精品一区二区三区中文 av免费永久福利 日韩一区二区三区四区电影 伊人亚洲综合网 真实小泑女网站国外俄罗斯 一本色道久久高清精品网站 午夜男女大片免费观看18禁片 国内老熟妇VIDEO 欧美VIDEOS粗暴高清 99久久精品国产99 波多野精品一区二区三区色情 久操精品在线视频 国产精品亚洲片在线观看不卡 国产女人喷水视频在线观看 亚洲国产精品av在线 亚洲av永久码av激情 国产日韩久久久久老熟女 极品少妇的粉嫩小泬视频 亚洲国产另类久久精品 免费的人成网站大全在线观看 国产午夜福利精品在线观看不卡 亚洲国产精品国自产拍AV麻豆 黑色丝袜美美女被躁翻了 国产色在线导航 国产麻豆剧果冻传媒观看 九九黄色视频免费看 久久一区二区三区综合 国产精品激情综合 人人揉揉香蕉大免费 亚洲66av 91亚洲欧美在线观看 日本色惰视频 女人毛片免费观看 免费看美女脱精光的网站 悠悠久久亚洲 狠狠色综合网丁香五月 国产伦一区二区三区视频涩爱 岛国av免费电影在线播放 国产精品国产三级国产在线 一本大道东京热无码AV 麻豆网站av Jizz护士奶水太多 中文字幕有码三级在线 日本大尺度岛国视频在线观看 国产欧美日韩综合久久婷婷 不卡的av影片 狠狠色婷婷丁香五月 波多野结衣一区二区三区高清 成年女人观看永久免费视频 18男同志GAY亚洲 美女隐私羞羞视频在线观看 好男人影视在线观看2019电影 国产国拍亚洲精品永久 女人和男人啪视频在线观看 麻豆av综合网 激情五月亚洲综合图区 18禁网站在线无毒免费观看 美女隐私羞羞视频在线观看 一二三四免费观看在线视频中文 国产波多野结衣一区二区 eee在线播放免费人成视频 国产成人久久综合一区 九九黄色视频免费看 日韩高清在线一区观看 美女又黄又爽在线观看网站 色哟哟国产精品观看 亚洲精品乱码国产精品乱码 久久久久亚洲精品av片 18禁成人国产又黄又爽 男男chinese男男资源 男人舔女人下边高潮全视频 久久精品亚洲影院 在线日本视频一区 国产高清欧美情侣视频 日本一本高清中文字幕视频 5566中文字幕在线 亚洲va欧美va人人爽久 88国产精品欧美一区二区三区 国产在线精品—区二区三区 91香蕉人妻久久精品99 青青草午夜影院 亚洲青青草国产 视频二区亚洲欧美日韩 无码少妇一区二区浪潮av 岛国免费动作片AV无码 欧美在线成人观看视频 国产激情av女片自拍 国产一区二区在线影院 男女乱婬真视频全过程播放 老妇炕上偷汉视频录像 CHINESE乱子伦XXXX 国产成人一区二区三区,欧美日韩国产 亚洲av永久天码精品天堂dl 国产亚洲精品精品一区二区 亚洲av成人在线影院 波多野结衣一区二区三区高清 国产精品嫩草影院99a 夜夜做夜夜爽夜夜摸 久久精品网色 欧美极品在线第一页 欧美精品国产成人 国产成人精品日本亚洲77美色 欧美激情A∨在线视频播放 亚洲少妇熟女 性生大片免费观看性 日本熟妇色VIDEOS 中文字幕熟女av 亚洲成人av高清在线观看 日韩精品 国产精品 欧美精品 日韩欧美成人免费 精品综合亚洲国产另类 欧美熟妇精品另类91 色老99久久九九爱精品 久久亚洲专区午夜福利 粗大的内捧猛烈进出小视频 日本少妇寂寞少妇AAA 日本高清性视频 啪啪人妻一区视频 女人性高朝床叫视频尖叫声 一级a级片毛片 少妇熟女精品 日本欧美国产区一区 禁止的爱善良的未删减版在线播放 超帅男生同志TWINKS视频 国产精品综合亚洲av久久 亚洲精品国产有码 熟女人妻精品一区二区三区 日韩av高清免费在线观看 99视频只有这里有精品 久久久久夜色精品国产 在线免费观看精品玖玖在线视频 又大又粗进出白浆直流视频在线 国产成人一区二区精品播放 久久国产精品国产精品99 无遮挡久久网18禁禁禁 99久久精品免费看国产一区 久久精品四虎av 国产日韩av高清在线不卡 亚洲中文字幕乱码在线视频 高清国产天堂在线bt免费资源 爆乳美女脱内衣裸体视频网站 老妇女BBwββwBBWBB 一本色道久久 欧美激情日韩国产在线播放 国产黄色的视频免费看 国产精品一区二区av国 亚洲国产嫩草影院在线观看 被黑人猛躁10次高潮视频 麻豆av综合网 99久久精品国产99 亚洲欧美一区二区成人精 亚州精品一区二区av 高清亚洲va 亚洲经典三级av 国语对白清晰露脸视频在线播放 一区二区国产亚洲 www.我爱我色.com 毛片av免费 国产欧美另类久久久精品不卡
      亚洲精品国产av久久久久| 偷色自拍亚洲偷自拍视频| 最近更新2019中文字幕第二页| 只有这里有精品99| 粉嫩蜜臀久久精品久久久久酒店 | 久久久国产老熟女| 国产乱码精品一区二区三区粉嫩| 另类一区欧美| 超级大乳人妻无码| 国产99久久99热| 99久久国产精品毛片| 美女张开腿做爽爽| 国产欧美一级二级三级| 婷婷色综合www| 亚洲中文字幕乱码视频| 欧美成人一区二区在线| 九九精品免费视频观看| 久久精品人妻av一区二区三区| 日韩激情免费成人影院| 日韩免费av电影网址| 男人的天堂av最新版本| 7777精品久久久久久| 2020无码专区人妻系列日韩| 亚洲黄色av视频| av在线日韩| 国产破处视频在线播放91| 男人狠狠天堂| 中国少妇BBWBBWHD| 亚洲综合色网址| 午夜精品久久久久久99精密桃| 成年美女黄网站视频免费| 久久精品av国产一区二区| 无码人妻久久一区二区三区免费 | 亚洲九九香蕉| 国产成人精品久久久久白嫩| 9热99这里只有精品| 亚洲精品一区波多野结衣| 久久亚洲精品国产亚洲老地址!| 国产激情一区二区三区在线播放| 被多个黑人猛操| 国产午夜免费观看视频| 淫民在线视频观看| 中文乱码字幕午夜无限观看| 体育生小鲜肉GAY自慰| 插bb射bb福利免费午夜视频| 日韩三级免费黄色片| 男人添女人下部视频| 久久婷婷国产亚洲精品综合| 色妞视频网站| 亚洲欧美综合图区| 人妻无码AV中文系列久久免费| 久久精品国产亚洲婷婷| 老司机深夜福利未满十八| 天堂久久亚洲精品| 国产一区二区三区刺激视频| 91亚洲欧美在线观看| 领导挺进娇妻身体| 日本高清色视频网址| 免费观看精品国产| 18禁羞羞视频无遮挡免费| 欧美性猛交╳xxx乱大交人| 成人午夜影院免费在线观看| 精品三级国产在线看| 亚洲av成人久久久久| 极品粉嫩福利午夜在线观看| 啪啪人妻一区视频| 亚洲avav天堂av在线网| 亚洲中文高清字幕在线播放| 超碰国产对白| 粗壮公每次进入让我次次高潮| 岛国av一区二区三区久久精品| 欧美成人午夜免费看电影| 加山夏子中文在线播放 | 天天做天天干夜夜操| 亚洲高清影院精品一区| 人妻中文字幕少妇在线视频| 色多多成人黄在线观看| 亚洲熟女老熟女自拍av| 国产精品挑色在线| 亚洲欧洲最新av| 真实小泑女网站国外俄罗斯| aa日本亚洲视频| 悠悠久久av| 国产内射视频啪啪| 一本久久中文字幕| 2020年国产精品午夜福利在线| 91麻豆精品国产自产在线观看一区 | 野外少妇愉情中文字幕| 国产高清在线地址| 国产亚洲精99品精99| 美女露100%奶头18禁| 亚洲经典三级av| 久久人人爽人人爽人人片宅男| 欧美精品亚洲一区二区三区| 国产一区视频二区视频| 凹凸精品熟女| 高潮美女在线观看| 一本色道久久88亚洲精精品综合| 一本色道久久精品| 99re高清视频| 国产精品va在线| 午夜精品久久久久久蜜桃| 免费看美女被靠的网站| 久久成人午夜电影院| 含羞草实验室入口网站免费进| 久久99久久国产毛片基地| 国产精品亚洲怡红院使用方法 | 国产AV福利第一精品| 久久99久久这里只有精品| 91av看片在线| 不卡的av影片| 性欧美1819性猛交| 内射白嫩的小少妇33p| 真人XO无遮挡GIF动态图无码| 欧美成人一二区| 午夜免费福利不卡顿视频| 久久久久久久久久久精品区少妇| 欧美变态另类Z0Z0禽交| 少妇被爽到高潮的视频| 久久热99免费频| 一二三四在线视频2| 最新中文字幕永久视频播放| 久久国产精品ww| 国产性色的免费视频网站| 精品人妻一区二区四区| 91麻豆精品人妻一区二区| 麻豆女人毛片| 色图亚洲综合网| av电影播放网址| 你懂的午夜电影| 亚洲精品日韩欧美精品| 欧洲亚洲综合| 91影院免费观看成人在线下载| 亚洲国产成人av人片久久网站| 日韩精品青青草原| 免费一级a在线观看网站| 制服诱惑二区| 波多AV无码人妻水多760| 免费一级爱片视频在线| 久久午夜精品福利一区二区| av成人网在线免费观看| 精品国产一区二区三区四区导航| 91精品国产福利久久| 亚洲丰满熟妇伦| 交换配乱吟粗大农村大坑性事| 国产免费一区二区三区av| 操的高潮喷水在线播放| 国产美女福利小视频| 国产精品黄视频美女| 国产品精品久久久久中文| 亚洲国产精品一区二区成| 18videosex极品性欧美| 国产成人系列免费观看| 国产美女A片免费看| 四十五十老熟妇乱子伦视频 | 成人国产三级午夜高清电影在线| 天天天天做夜夜夜爽| 久久精品亚洲精品无码| 国产亚洲精品网站在线观看| 蜜臀av国内精品久久久久久久| 久久久人人人人| 日本欧美国产在线一| 欧美日韩精品一区二区三区0| 丰满巨肥大屁股BBW| 啦啦啦高清影视在线观看3| 国产精品美女久久久久久免费| 国产伦精品一区二区三区视频9| 无码爆乳护士让我爽| 99久久精品人人人妻人人玩| 欧美成人精品区二区三区| 亚洲影院一区二区三| 久久久久久久久久久大尺度免| 波多野结衣二区国产| 人妻一区二区中文字幕在线| 国产精品日韩久久久久久| 99re视频在线观看免费| 欧美性性性性性色大片免费的| 日日夜夜福利视频| 蜜桃av免费网站| 精品久久亚洲中文| 国产精品zjzjzj在线观看| 国产极品女主播国产区| 日本一本二本三区高清资源 | 精品一区二区电影在线| 久久精品人妻少妇av一区二区| 国产午夜一区二区三区影院| 高潮美女一区视频| 男人边吃奶摸下边视频| 欧美日韩一中文字幕| 欧美国产精品亚洲精品观看| 成人影院亚洲| 清纯女多次高潮免费视频| 亚洲午夜福利在线播放网址| 人妻婬乱厨房波多野结| 40岁成熟女人牲交片20分钟| 久久这里只精品66精品99| 可以免费看a级毛片| 91人妻碰碰| 日本一区二区三区精品在线播放| 国产免费人成视频尤勿视频| 人妻少妇精品天堂毛片在线| 2019中文字幕在线观看| 精品国产一区二区三区四区导航| 国产高清欧美情侣视频| 永久免费A片无码无需播放器 | 免费毛片在线观看网站| 99欧美激情| 国产超黄a级视频免费看| 国产明星裸体XXXX视频| 日本在线有码电影网站| 在线视频一区二区三区在线播放| 性欧美性欧美猛交| 亚洲最大中文字幕精品| 一区二区三区四区欧美极品| 久久精品免费视频17| 呻吟 粗暴 喘息 乳 抓捏| 91av在线电影| 亚洲成人一区二区久久| 色窝窝亚洲AV网在线观看 | 国产成人av性色在线观看| 少妇精品久久久久久久| av毛片成人| av一区二区电影网站| 欧美成人免费一区二区三区四区| 国产欧美亚洲另类aⅴ| 三级国产毛片| 男女人搞黄色视频在线观看| 真人激情国产一区二区| 人成欧美视频在线| 国产精品久久久久7777按摩 | 欧美第一页久久| 国产成人高潮拍拍拍18| 欧美亚洲综合在线中文字幕| 绯色av少妇精品人妻精品| 呻吟 粗暴 喘息 乳 抓捏| 亚洲高清av片在线观看| 日本少妇寂寞少妇AAA| av日韩在线不卡| 小辣椒福利视频精品导航| 影音先锋新男人AV资源站| 人妻中文字幕少妇在线视频| 人妻少妇精品国语对白| 国产午夜电影在线电影| 国产特级毛片,成年人性..| 久久99蜜桃精品| 精品精品在线免费观看| 国偷精品在线观看| 荡女淫春视频| 国产精品嫩草影院午夜av| 亚洲欧美成人综合另类久久久| 日韩亚洲欧美精品综合| 亚洲天堂av无毛| 91av免费在线观看不卡| 国产1区2区3区精品| 日韩最新av网址| 轻轻草免费在线视频| 羞羞午夜福利在线| 日本一区二区三区精品电影| 色网站视频免费| 久久超碰少妇人妻| 三级黄色国产| 婷婷色亚洲av| 桃花视频在线观看高清播放| 国产欧美区一区二区三区| 日韩欧美亚洲国产三级黄色片 | 一区二区三区午夜精品| 天堂a√在线中文在线最新版 | 国外VPSWINDOWS在线| 写真福利精品福利在线观看| 亚洲AV无码专区色爱天堂| 你下面好湿夹得我好爽动态图| 成人av在线观看免费不卡| 波多AV无码人妻水多760 | av毛片在线观看地址| 亚洲欧美在线观看免费视频| 热99国产精品久久久久久7| 99这里只有精品5| 人妻少妇中文字幕久久| 女国产精品视频一区| 女人18毛片水多免费视频| 国产成人福利精品在线| 日本在线有码电影网站| 国产乱码精品一区二区16| 真实国产乱子伦沙发睡午觉| 黄色片一级av| 又硬又粗又爽免费视频| 国产亚洲精品久久小说| 人妻系列AV无码专区| 亚洲337少妇裸体艺术| 国产成人无码a区在线观看视频| 中文字幕日韩高清一区| 亚洲欧美国产日韩一区| 亚洲av高清一区二区重口| 精品人妻自拍视频中国大陆| 亚洲精品网页| 青春草在线播放视频在线播放| 天堂中文8在线资源| 成人激情视频免费在线播放| 伊人 久久 中文字幕| 国产免费一区二区三区五区久久| 国产精品一区二区不卡在线| 美妇啊灬啊灬用力…啊快| 美女黄频免费能直接看| 成人熟女免费视频| 秋霞影院国产一区二区三区| 中文字幕在线乱码人妻| 老司机免费色视频| 久久国产伦精品一区二区三区| 久久成人有码精品| 久久综合国产亚洲| 亚洲中文无码卡通动漫野外| 成人二区视频| 国产欧美日韩一线| 中文一区二区字幕欧美| 久久久久久精品91| 日韩中欧美一区二区在线观看| 香蕉久久综合网| 日韩欧美一级成人| 老妇女性较大毛片| 国产欧美日韩一区二区三区四区| 激情偷乱人伦小说| 国产在线jyzzjyzz免费| 国产精品国产三级专| 成人男女在线播放| 影音先锋无码AⅤ男人资源站| 一本色道久久高清精品网站 | 又黄又硬又粗又长又爽的视频| 国产激情久久老熟女| 国产综合亚洲精品色区在线观看 | 欧美亚洲一区二区三区免费| 国产在线观看男天堂| 国产免费一区二区三区五区久久| 国产欧美日韩一线| 91中文字幕在线观看nba| 韩国三级BD高清中字| 十八禁免费网站入口| AV老司机午夜福利片免费观看| 国产精品VA在线观看丝瓜影院| aa在线观看网站| 国产亲子乱xxxxinin| 亚洲最大的人成网站| poren 18大学生| 99免费的精品视频| 四虎熟女亚洲精品| 91人妻内射综合| a做片免费观看久久| 久久亚洲av精品毛片二区| 久久av中文1区| 国产裸体歌舞一区二区| 午夜激情久久久久久久| 亚洲国产色综合| 国产喷水高潮在线观看| 久久看电影久久久久国产| 丝袜高跟国产一区| 久久99热这里只有精品| 男女吃奶摸下视频| 东京复仇者在线观看| 真实小泑女网站国外俄罗斯| 国产综合亚洲精品一区二区三区| 亚洲中文久久精品无码1| 丝袜美腿一区二区三区| 国产欧美一区精品| 最新av网站网址在线观看| 国产小屁孩cao大人| 久久成人午夜电影院| 小说一区二区图片视频| 欧美日韩色另类综合| 日本色综合网站视频| 成年美女毛片免费看| 黄色毛片看免费| 老湿机免费体检区无需下载| 免费看60分钟网站日本| 日韩欧美一级成人| 日韩一级久久久久久久大片| 另类一区欧美| 成人性生交aaa大片| 日韩中文字幕视频网址| 欧美5~12牲交生生活| 久久久久精品国产亚洲av熟女| 国产亚洲人成在线网站| 亚洲av熟女一区二区三区| 无遮挡19禁啪啪成人黄软件| av久久中文字幕人妻| 香蕉久久精品动漫| 欧美人与动牲交片免费播放 | 人妻中文字幕免费观看| 12周岁女全身裸在线观看A片| 久久久精品大全| 亚洲人成伊人网| 国产精品老熟女一区熟女av| 亚洲欧洲午夜影院| 黑人巨大欧美精品一二区| 最近国产中文字幕视频| 18日本学生无套高潮片| 免费看小黄鸭av片成人| 亚洲精品电影成人在线观看| JIZ中国ZZ老师喷水| 亚洲精品国产婷婷久久| 日本网址在线| a级毛片黄色视频在线播放| 北京妇女BBW| 久久久久久久久′久久免费精品| 日韩欧美视频网址在线| 夜夜夜夜夜久久久久| 老司机av电影天堂| va欧美va亚洲综合在线观看| 国产精品天干天干在线澳门| 波多野结衣一区二区三区高清| 亚洲精品熟女在线| 野外少妇愉情中文字幕| 国产一区二区在线观看精品| 国产精品欧美日韩电影| 国产线免视频在线观看| 韩国三级BD高清中字| 骚片a视频免费观看| 在线日本视频一区| 成人在线视频三区| 一级毛片久久久久久久久女| av资源网站免费在线观看| 免费aaaa级毛片网站| 亚洲天堂电影av| 不卡的av影片| 日韩电影不卡一区| av电影中文网址| 午夜久久福利影院| 亚洲一区和二区色| 又粗又长又硬又大又爽视频| 亚洲av伊人久久综合蜜臀| 从女儿九岁开始做| 一本色道久久88综合亚州精品| 国模欢欢炮交啪啪150| 97人妻天天添夜夜摸| 午夜精品成人在线观看视频| 91精品亚洲欧美日韩在线| 国产乱了伦视频| 99re6热在线精品视频| 成人久久av爱乃娜美免费观看| 噗嗤噗嗤太深了啊快停下| 亚洲欧美日韩成人一区二区三区 | 日本在线一二三区视频| 婷婷成人精品国产| 国片av国产精品| 老司机午夜精品影院| 欧美日韩第一区二区三区国产| 欧美老肥婆牲交VIDEOS| 女同久久国产精品99国产精品 | 精品人妻有码| 久久中文字幕熟女人妻| 欧美牲交A欧美牲交AⅤ另类| 国产卡一卡二卡| 亚洲国产精品嫩草影院| 久久精品一区二区三区福利网| 一级人爱免费视频黄片| 在线天堂WWW在线资源| 99热这里只有精品伊人大| PORNO HD学生16| 亚洲天堂av成人在线观看| 成人无码www免费视频男男| 人妻人人澡人人添| 99久久精品国产一区色| 观看av免费不卡| 男人的天堂av最新版本| 97在线观看视频在线久| 亚洲国产精品久久| 国产又色又爽又黄的tv视频| 国产精品久久久久久99| 91av麻豆视频| 日韩亚州欧美在线| 国产精品自拍av一区| 久久亚洲精品无码AV红樱桃| 国产综合色香蕉精品五夜婷| 亚洲成人午夜福利电影| 看三级精品国产三级精品| 亚洲国产精品色婷婷| 久久国产精品乱子乱精品| 好男人官网高清免费观看视频| av亚洲伊人| 欧美一区二区激情电影| 草蜢社区在线观看免费观看| 国产在线偷看观看免费| 精华精华液有什么用| 在线免费观看av网站不卡| 正在播放亚洲精品一区二区| 成人高清精品亚洲| 精品人妻一区二区三区在线视频 | 人成综合在线免费视频| 一级电影一区二区三区神马电影院| 日本熟妇人妻XXXXX野外| 色哟哟成人在线观看| 欧美国产日韩一区二区三区最新| 亚洲婷婷成人网| 我和岳交换夫妇中文字幕| 熟妇草逼视频| 日韩人妻熟女一区二区三区| h视频免费在线观看播放| 日产精品乱码卡一卡2卡三网站| 国产毛片一卡二卡三卡四卡| a天堂tv香蕉| 久久精品人妻一区二区三区| 国产一区二区视频精品| 97人妻超碰人人| 国产第|页日本草草影院一| 日韩aⅴ精品国内在线| 久久久久了精品久久久18| 男女视频网址免费| 在线免费av网站| 丰满熟女乱又伦| 久久av电影| 亚洲熟妇AV一区| 高清国产亚洲三级精品影院在| 永久黄网站色视频大全| 亚洲在线观影| 欧美大屁股XXXXHD黑色| 黄片在线免费观看最新视频| 国产高清资源在线观看| 亚洲无亚洲人成网站9999| 桃花社区视频在线| 99久久精品视香蕉蕉| 在线看免费视频999| 精品亚洲AV无码一区二区三区| 亚洲成人精品少妇| 欧美另类清纯字幕乱码| 久久久久久一区二区三区四区五区| 欧美成人午夜免费影视| 亚洲嫩草影院| 两个人韩国免费完整| 日韩亚洲中文字幕永久在线| 久久99精品久久久久mm| 亚洲免费av天堂| JIZZJIZZ老师学生视频| 日韩亚洲欧美三区中文字幕| 欧美亚洲另类一区二区| 在线天堂最新中文网| 国产又色又爽无遮挡免| 国产午夜亚洲精品麻豆| 婷婷精品国产亚洲av不片| 黑色丝袜老师好紧我要进去了| 91av免费在线观看不卡| 人人妻人人干人人澡| 一级二级三级毛片免费看| 久久精品国产专区| 公与熄BD日本中文字幕| 天天爱天天做天天做天天吃中| 人妻字幕av一区二区三区| av尤物.com| 精产国品久久一二三| 60岁女人宾馆全程露脸| CHINESE国产高清AV| 999这里有精品视频| 夜色毛片永久免费视频| 91久久久国产精华亚洲精华精华液| 久久人人爽爽人人爽人人爽aⅴ| 19禁免费视频无码网站| 国产精品老熟女视频1区二区| 国产欧美日韩高清不卡| 久久99国产探花| 亚洲欧洲av另类| 国产学生处被破的视频| av在线免费观看国产精品| 国产午夜福利片在线观看| 亚洲av黄片一区二区三区| 青草草永久视频| 美国女孩儿成人毛片| 国产在线精品—区二区三区| 国内真实愉拍系列在线视频 | 另类一区欧美| 欧美日韩国产图片在线观看| 精品一区二区三区人妻制服| 老熟妇乱子性伦| 国产精品久久久久久麻辣| 中国特级淫片久草视频| 精品人妻中出| 欧美精品a成人| 精品久久久久轻点太大| JIZZ全部免费看全片| 无遮挡3D黄肉动漫午夜| 91人人精品人人爽| 国产精品亚洲一区二区在线观看| 无码人妻丰满熟妇啪啪| 所有免费永久岛国av网址| 免费无码中文字幕A级毛片| 亚洲中文av中文字幕在线| 亚洲男生天堂av| bt天堂新版中文在线| 亚洲国产日韩欧美高清片| 精品久久久久久99| 狠狠爱天天噜日日噜视色| 91av网一区二区| 久久久久国产精品亚洲欧美| 亚洲一区二区精品国产| 中国大屁股XXXX| 别揉我奶头嗯啊~啊视频网站| 亚洲中文字幕免费在线播放| 欧美乱子伦XXXX12| 老熟妇乱子伦系列视频| 国产黄色高清视频在线观看| 你懂的午夜电影| 精品蜜桃视频在线| 蜜桃av麻豆一区中文字幕| 久久精品三级电影| 午夜影院在线观看国产精品| 亚洲高清成人一区二区三区| 女人被爽到呻吟的视频| 又大又黄又爽视频免费| 成年男女免费视频网站无| 欧美熟女黑人巨大| 人妻熟女最新精品少妇| 中文精品一卡2卡3卡4卡| 中文字幕小视频网站| 人妻激情偷乱视频一| 亚洲精品亚洲人av| 成人午夜视频免费在线| 少妇又粗又爽又猛又黄| 国产老妇伦国产熟女老妇高清| 新婚少妇无套内谢国语播放| 老板不让穿乳罩随时揉| 午夜亚洲国产理论片中文飘花| 亚洲午夜影院在线观看| 九九热久久国产精品| 亚洲中文字幕在线无码一区二区| 国产Α片免费观看在线人| 一区二区三区四区激情视频| 欧美青涩第一页| 好吊色在线一区| 被黑人猛躁10次高潮视频| 成人乱码一区二区三区av0| 日韩一区三区二区最新视频| 人妻在夫面前被性爆| 无遮挡18禁羞羞漫画免费动漫| 男生为什么最后几下特别快| 无码任你躁久久久久久久| 岛国视频在线观看免费一区二区| 三级免费毛片大放送| 岛国v免费观看视频| 交换配乱吟粗大农村大坑性事| 熟女亚洲精品| 免费高清毛片在线播放| 中文字幕日韩视频首页| 国产精品综合亚洲av久久久网站| 亚洲av秘av| 日韩亚洲成人一区二区| 欧美成人三级精品| 暖暖视频播放免费韩国| 美女脱内衣禁止18以下尤物| 国内精品美女久久久久久 | 亚洲中文字幕在线入口| 亚洲最新av在线播放| 久久人妻精品一区二区| av网站网页在线观看| 国产成人精品无人区| 老司机91看片| 午夜avvvv| 午夜福利在线免费观看国产| 极品丝袜美女被啪啪嗷嗷叫| 国产欧美日韩综合网| 欧美日韩亚洲国产一区| 久久人人97超碰香蕉20202| 午夜欧美日韩品久久久| 成人国产色综合| 熟女人妻av一区二区| 国产美女被遭强高潮动态视频| 大号毛BBW厕所偷窥| 不卡av在线播放观看| 久久久人妻91久久久| POPNHUB国产在线观看| 国产精品欧美1区| 又长又大又硬又爽又黄的视频| 免费一级a级高清毛片人妻6| 成人高清毛片| 日本级在线视频| 丁香五月亚洲综合在线国内自拍 | 在线观看国产精品入口| 日韩a人毛片精品无人区乱码| 欧美三级电影一区二区 | 亚洲天堂电影av| 在线永久免费观看色视频网站| 欧美福利电影在线一区二区三区| 国产成人剧情av麻豆映画1| 999成人精品电影| 国产老熟女打炮| 国产久久精品久久| 91久久亚洲综合精品成人 | 亚洲欧洲日韩国内高清| 国产乱码精品一区二区16| 99色热这里只有精品| 国产免费又色又爽又黄的网 | 午夜精品久久久久久久久| 夜夜夜夜夜久久久久| 久久亚洲中文字幕精品一区二区| 久久国产精品久久精品| 色播五月六月丁香| 高清视频免费观看一区二区| av在线免费观看亚洲| 极品人妻被内射中出| a级毛片在线| 寡妇好丰满奶好大在线观看| 亚洲av午夜精品福利| 亚洲精品乱码久久久久久app| 日韩一区二区三区免费看片| 91精品国产福利尤物免费| 欧美乱XXXXXXXXX| 久久精品一区二区三区四区123国产| 亚洲丰满熟妇伦| 亚洲精品aa在线观看| 国产午夜理论不卡琪琪| 欧美一区二区尤物黑人| 欧美日韩另类综合久久久| 性色av一区二区三| 97婷婷大香蕉| 亚洲成a人片8888一在线观看| 亚洲情中文字幕在线| 国产三级久久粉嫩| AV午夜福利一片免费看久久| 亚洲欧美综合一区在线观看| 欧美性受XXXXZOOZ| 免费18禁免费网站| 国产精品久久视频免费| 老湿机免费体检三分钟十八岁| 亚洲午夜福利精品| av毛片在线观看地址| 久久99久久国产毛片基地| 欧美乱妇无乱码高清| 色综合婷婷激情| 国产综合av性色在线影院| 少妇被爽到高潮的视频| 毛片免费全部播放无码| 亚洲欧美国产精品va在线| 色哟哟制片厂av| 日韩精选在线观看不卡视频免费| 久久久久久久久久久精品区少妇| 日韩有码中文字幕一区| 国内精品自国内精品66j影院| 黄片.comwww| 亚洲欧美人成影视在线| 男人舔女人下边高潮全视频| 欧美午夜性激情免费在线| 免费黄片一级视频| 91成人精品电影| 极品粉嫩国产免费观看| 午夜福利正片免费看| 日本黄色视频三级网站网址| 在线影院一区二区三区| 99热这里只有精品免费观看| 亚洲成年黄色片| 国产精品久久99免费| 一区二区三区精品91| 国产在视频线精品视频午夜视频| 亚洲人成福利午夜在线观看| 国产视频久久精| 国产三级国产精品三级在专区| 极品美女999插插插| 国产精品偷伦视频免费还看的| 中文字幕制服日韩人妻精品| 日本AAAAA级特黄大片| 99久久99这里只有精品免费视频| a级毛片在线网站| 少妇熟女精品| 5566中文字幕在线| 久久精品视频在线网站| 被舔到高潮喷水免费观看| 91人人妻人人精品| 亚洲国产欧美av| 午夜综合电影| 国产三级精品二区| 欧美激情欧美激情在线99| 亚洲视频在线观看一区视频| 91丝袜美腿诱惑| 美女扒开胸罩露出奶头的视频| 精品人妻一区二区三区麻豆| 一区二区三区欧美激情视频| 国产高跟丝袜一区| 最好看最新中文字幕2019| 久久久一本精品| 中文字幕网站av| 医生帮我取出里面的球| 亚洲电影天堂av| 欧美啪啪网站| 日韩在线电影一区二区三区| 欧美视频亚洲精品| 欧美日韩一区91| 精品国产免费网站二区二区| 蜜桃成啪啪视频| 啊!摁摁~啊!用力~快点视频| 一个人在日本www| 天堂男人久久av| 欧美成人三级精品| 国产做a爰片久久毛| 人妻少妇中文字幕久久| 亚洲一区久久中文字幕| 初学生免费自慰网站高清| 免费看黄a级毛片下载| 大香蕉久久cao| 漂亮人妻被同事疯狂玩弄| 日韩性视频国语对白| 狂干人妻少妇视频| 辽宁熟女高潮狂叫视频| 女国产精品视频一区| 国产综合精品 一区二区| 毛多内射在线视频| 日本黄色视频网站啊啊啊| 久久99精品欠久久久久久| 护士办公室裙揉捏喝乳| 久久精品麻豆国产| 日本欧美在线视频观看97| 婷婷精品国产亚洲av不片| 亚洲乱码av一区二区| a欧美日韩高清在线播放| 日韩一二三区视频免费观看| 中文字幕人妻在线一区有码| 午夜大片久久久久成人| 日本女人内射视频网站| 婷婷激情五月马上播出| 一欧美一区二区三区四| 亚洲国产日韩欧美精品| 精品久久久久久久久视色限时免费| 久久丫精品久久丫| 亚洲欧美日韩精品人妻| 18禁网站在线无毒免费观看| 日韩欧美久久综合| 国产精品av专区| CHINESE农村夫妇双飞| 亚洲欧美日韩综合三区| 北条麻妃中文字幕av| 工口网站在线观看| 亚洲av熟女诱惑| 国产又粗又硬又爽又猛又黄视频| 久久精品国产亚洲av高另类| 老司机午夜福利视频在线| 亚洲美女久久 久| 午夜一区精品国产亚洲av| 日日人人妻人人澡人人爽欧美| 男人天堂国产精品| 亚洲国模私拍人体GOGO| 久久久噜噜噜精品麻豆av| 中文字幕在线91| 要看免费黄色毛片| 午夜性刺激爽免费视频5| 国产免费牲交视频免费下载| 精品人妻少妇嫩草av有码专区| 少妇人妻99久久| 日韩亚洲欧美精品综合| 狠狠躁夜夜躁中文字幕| 欧美一区二区亚洲专区| 国产精品成人黄片在线播放 | 欧美熟妇精品另类91| 加拿大永久居民福利| 国产乱码精品一区二区三区蜜臀| 亚洲天堂啊v| 欧洲精品码一区二区三区| 国产精品挑色在线| 97视频在线观看网站| 亚洲婷婷成人网| 国产一区二区三区毛毛片| 全彩十八禁裸乳无遮挡| 久久亚洲国产成人精| 产后漂亮奶水人妻无码| 国产探花精品在线| 日本xxxx高清色是免费观看 | 麻豆国产av亚洲一区| 亚洲中文高清字幕在线播放| 别揉我奶头嗯啊~别进去视频 | 欧美色站在线视频| 国产精品女同一区二区软件 | 久久国产精品熟女一区二区三区| 精品人妻一区二区三区麻豆| 七妺福利精品导航大全| 精品国产福利网站| 国产在线播放色| 国产村妇女毛片精品久久| 国内揄拍国内精品人妻| 亚洲精品av少妇在线| 黑人少妇啊啊啊视频| av免费不卡在线看片| 黄色美女视频亚洲| 婷婷色亚洲av| 久久最近中文字幕| 男女网站国产视频| 美女作爱全过程免费观看| 男人边吃奶边做细节描述| 孩子边吃奶边哭怎么回事| 免费在线观看不卡黄| 免费观看日本mv在线观看| 亚洲av.影院| 三区久久精品| 国产亚洲精品线观看K频道| 久久中文字幕资源网| 一区二区三区国内精品视频| 日本强伦姧护士MMM| 久久窝窝影院大香| 特级黄色视频全免费| 亚洲二区欧美精品| 无码无套少妇毛多18P| 欧美日韩三级在线播放| 欧美亚洲精品免费在线| 毛片一级片免费看久久久久| 亚洲avtv永久综合在线| 娇妻被猛男老外玩三P| 国产精品美女被遭强扒开| 又长又大又硬又爽又黄的视频| 韩国精品亚洲| 人妻少妇中文字幕久久| 国产av一区二区亚洲精品| 在线观看的亚洲av| 免费观看美女视频的网站| 欧美成人四级中文字幕| 忘穿内裤被同桌玩到湿| 搞黄视频大全在线| 色多网站免费视频| 又爽又粗又黄的视频| 国产精品成人影院久久久| 亚洲电影a一区二区| 91av在线电影| 99久久精品无码专区| 国产一级做a爱片久久| 少妇被粗大猛烈进出高潮视频| 蜜臀av国产亚洲欧美xxx| 久久婷婷人人爽| 好男人官网高清免费观看视频| 国产黄色美女视频免费| 人妻熟女中文字幕丝袜| 亚洲国产精品成人久久久久| 日韩亚洲午夜av| 久久这里有精品视频免费| 中国熟女少妇| 日本丰满熟妇VIDEOS | 热久久99热国产精品首页| 夜夜躁av麻豆男| 亚洲狠狠婷婷久久久久图片| 激情婷婷综合久久久久| 国产精品三级91| 在线成H人视频免费| 一天接了8个客人肿了照片| 国产香蕉tv在线| 亚洲精品丝袜av| 宅男噜噜66国产精品观看网址| 久久爽国产熟妇熟女| 国产欧美日韩综合网| 亚洲欧美另类一区二区三区| 日日操夜夜爽| 免费高清欧美一区二区三区| 人妻三级日本香港三级极97| av性夜久久| 亚洲欧洲精品中文字幕不卡| 国产美女免费观看高潮视频| xxx日本一二三区不卡| xxoo啪啪动态图| av一本久久久久| 啪啪人妻一区视频| 精品三级国产免费| 国外VPSWINDOWS在线| 免费精品国产自在| 欧美最猛性xxxxx亚洲精品| 中文有码人妻制服| 午夜av在线国产精品| 亚洲人成色77777在线观看| 久久麻豆成人精品av网站| 日韩精品一区二区电影网| 91性高潮久久久久久久久久久久 | 亚洲中文精品乱码| 亚洲伊人婷婷网站| 国产极品美女bbbb| 小说一区二区图片视频| 波多野结衣成人免费电影| 日韩成人免费电影网站| 国内精品伊人影院| 亚洲经典三级av| 伊人久久精品亚洲午夜| 精品少妇内射三级| 国产精品一区二区三区绯色av| 国内毛片毛片毛片毛片毛片| 亚洲十八岁女人毛片水多| 人人澡人人爽人人妻人人精品| 金瓶玉梅2爱的性奴在国语| 亚洲第一网站在线免费观看| 九九在线成人| 99看片在线免费观看| 男女一边摸一边做爽爽的动态图| 一个人免费视频在线观看| 久久亚洲这里都是精品| 老司机免费色视频| 狠狠的干性视频| 国产成人系列免费观看| 又色又爽又黄又刺激国产视频| 久久久久久大精品| 久久国产av网站超全| 精品国产综合区久久久久久久久| 日韩精品毛片久久久久久久 | 亚洲永久中文字幕| 色se000视频| 久久国产乱子精品免费一区| 国产成人免费v片| 小说图片视频一区二区| 激情在线视频精品| 亚洲精品在线看片| 亲子乱子伦XXXX| 亚洲欧美日韩综合俺去了 | 97起碰在线观看| 欧美淫根插插插一区二区三区| 一卡二卡≡卡四卡精品网站 | 91专区中文字幕| 男同GAY片AV网站| 国产精品成人一区二区免费| 欧美性受XXXXZOOZ| 91精品久久人人妻人人做 | 色老头在线永久免费视频| yjizz国产大全视频| 亚洲AV午夜精品无码专区| 中文天堂在线三区| 久久亚洲人都爱| 精品国产精品三级国产高清| 国产激情精品在线观看| 91人人爽人人澡人人妻| 舔到高潮喷水视频| 97久热在线观看精品| 女人张开腿让男桶喷水高潮| 亚州精品一区二区av| 99看片在线免费观看| 看黄色片子一级片| 欧美精品亚洲精品日韩已满十八| 久久成人国产九九| 中文综合在线 | 亚洲欧美日韩综合一区| 最近免费中文字幕中文高清3| 91精品国产福利尤物免费| 一本色道久久高清精品网站| 国产亚洲中文日本不卡二区 | 国产又黄又粗又爽女视频| 亚洲精品国产电影人久久| 熟女电影av网| 最近2019中文字幕免费看手机 | 亚洲精品国产片| 伊人久久中文字幕| 12周岁女全身裸啪啪自慰网站| 中国XXXX真实自拍| 日韩高清在线一区观看| 免费黄网站久久成人精品| 久久香蕉超碰| 尤物视频日本aa大片| 国产视频福利免费看| 亚洲AV色男人的天堂| 六月丁香欧美| 国产精品亚洲大片| 欧美亚洲偷自拍| 在线免费视频999| 亚洲热大香蕉| 青草久久国产| 午夜理论2019理论无码| 黑人巨大精品欧美一区二区mp4| 日韩午夜高清福利老司机| 99热最新这里只有精品10| 天堂社区久久香蕉视频| 人妻少妇精品久久人妻| 日韩中文字幕| 日日碰狠狠躁久久躁96av| 国产精品另类亚洲精品女| 日本mv高清在线成人高清| 欧美性群另类交| 久久乱69小说| 18成人午夜网站在线观看| 丰满熟妇人妻水多屁股大| 麻豆成人精品在线观看| 免费AV片在线观看网址| 亚洲成人久久性| 有b吗?av在线中文字幕| 亚洲精品456在线播放国语| 浓毛大屁股BBW| 一区二区三区亚洲在线观看| 国产精品日韩欧美一区二区视频| 黄色大片在线播看| 免费黄片一级视频| 国产免费人成视频尤勿视频| 国产40岁熟女精品观看| 美女水多一级毛片| 国产精品欧美一区二区三区奶水| 人人狠狠综合久久亚洲咪咪色| 日韩亚洲av免费电影| 一区二区三区亚洲精品中文字幕 | 欧美多毛熟女视频| 亚洲国产嫩草影院在线观看| 人妻夜夜爽天天爽三区| 又粗又硬又猛又黄视频| 精品黄视频免费| 新版中文资源天堂韩国在线| 亚洲精品国产片av| 亚洲最大91av色| 国产熟女真实乱精品| 日本胸大公妇被公侵犯中文字幕| 十分钟免费观看高清视频大全| 99国产国语对白视频| 中文字幕丝袜亚洲| 精品国产日韩亚洲一区| 亚洲成av人片一区二区波多野| 日韩人妻无乱码在线视频| 亚洲AV无码专区色爱天堂| 女人张开腿让男桶喷水高潮| 亚洲天堂网资源在线| 亚洲综合色偷偷av| AV区无码字幕中文色| 香港三级电影国产精品| 小辣椒导航福利入口| 国产幕精品无码亚洲字幕资不卡| 欧美成人精品二区三区| 里番高H无码无修在线观看| 肉体暴力强奷在线播放| 日韩在线电影一区二区三区| 无码AV片AV片AV无码| 女被男啪到哭免费视频 视频| 亚洲视频中文字幕蜜桃人妻| 日本熟妇人妻XXXXXHD| 久久精品熟女亚洲av麻豆精品| 天天免费看高清黄片| 在线观看91中文字幕| 在线成H人视频免费| 一级电影一区二区三区神马电影院| 久久婷婷精品| 国产视频看看一区二区三区| 国产av三级| 老司机性色福利精品视频 | 在办公室被弄到了高潮视频| 一本综合久久免费| 欧美久久伊人密| 亚洲av国产aⅴ精品一区| 亚洲精品久久久久久一区二区三区| 韩国三级毛片在线直播| 日韩一区二区三区免费看片| 国产av人人夜夜澡人人爽麻豆| 黑人与牛交ZOZOZO| 日日碰狠狠躁久久躁| 亚洲午夜少妇av毛片:| 亚洲av色图在线播放| 久久久久久国产精品免费免熟| 国产av黄麻豆| 青青草午夜影院| 中文字幕密臀av首页熟女人妻| 老司机午夜福利AV无码特黄A| 性按摩XXXX| 亚洲一区中文字幕高清| 亚洲另类春色国产精品| 秋霞在线观看日韩av| 日本高清免费大淫妇| bt天堂中文最新版网| 欧美日韩亚洲另类专区| 久久精品亚洲久久久| 国产男女无遮挡在线观看| 免费av不卡国产| 国产精品欧美1区| 午夜亚洲国产理论片中文飘花| 久久精品都在这里| 国产精品挑色在线| www.亚洲怡红院国产免费| 亚洲多人在线播放| 久久久久久国产综合精品| 久久国产精品久久精品| 护士你夹真紧水又多| 女人18毛片在线观看| 蜜桃一区二区三区精品av在线| 色播欧美在线观看| 搡少妇在线视频少妇干活了| 亚洲欧美一区免费在线观看| 综合色丁香网| 久久综合伊人77777| 国产精品黄片播放| 国产免费午夜福利在线播放11| 中国一区二区乱码| 暴力强奷漂亮女同学在线观看| 精品人妻一二三四| 亚洲国产男同同性VIDEOS| 日韩免费av毛片| av在线影片| 亚洲色资源在线播放| 国产精品18久久久久久久网站| 在线国产精品一区二区在线| 久久精品视频免费看看| 熟妇人妻视频一区| 加勒比亚洲av| 亚洲知名国产av| 国产熟女精品av一区二区三区| 奇米影视777四色狠狠| 成人午夜福利人妻88| 成人天堂av亚洲av在| 澳门一级a毛片| 国产人伦真实精品视频| 激情婷婷综合久久久久| 亚洲欧美日韩精品二区| 日韩不在线不卡视频播放| 激情aⅴ欧美一区二区三区| 日日躁夜夜躁狠狠躁2022年| 野外国产精品久久免费9|久久| 亚洲国产伊人影院最新| 国产精品亚洲精品久久久久爽| 国模生殖欣赏337METCN| 女人18毛片水真多免费观| 男男小受被啪啪网站| 超碰成人人人在做人人爽| 久久精品国产亚洲AV网站| 国语刺激对白在线视频播放| 99精品欧美一区二区三区四区| 小明看看成人首页永久免费观看 | 日韩亚洲欧美三区中文字幕| 精品久久久国产一区| 日本熟老少妇XXXXX| 久久九九99综合一区二区| 一本一本久久A久久精品综合| 欧美一级大片特黄| 美女作爱全过程免费观看| 熟女一区2区| 中文字幕码精品视频网站| 不卡av免费国产| 怡红院亚洲| 日韩毛片成人| 欧美乱妇免费高清视频在线| 午夜精品福利80| 特级毛片免费视频播放| 精品国产福利久久| 97国产精品久久超碰| 国产欧美日韩综合网| 韩日中文字幕在线免费视频| 日韩在线高清大片| 老司机午夜福利AV无码特黄A| 青春草视频在线精品| a级毛片在线| 国产美女主播喷水视频| 久久久久人妻一区二区三区麻豆| 黄片免费在线播| 国产欧美激情一区二区2| 国产精品a一区二区三区电影 | 在线免费看的黄色av网站| 男女生羞羞视频网页| 色欲香天天天综合网站无码| 99久久精品久精品| 色老99久久九九爱精品| 老司机午夜视频一区| 好男人影视在线观看2019电影 | 亚洲美女久久精品网站| 久久精品国产影片| 精品午夜一区二区三区| 精品免费视频中文字幕| 日韩欧美一区二区三区精品影视| 好男人影视在线观看2019电影| 永久av在线免费播放| 69av精品久久久久久| 91精品久久综合熟女蜜臀| 欧美激情自拍视频网址| 久久久久久久高潮av| 欧美电影乱码在线播放| 久久大香伊蕉在人线国产H| 日产国产亚洲精品| 日韩高清影院| 一区二区亚洲精品国产av| 日本免费网站人成| 亚洲av在线高清观看| 伊人久久大香线蕉亚洲五| 国产欧美日韩91在线| 黄色的视频免费在线观看| 欧美第一特黄大片在线| 久久成人亚洲| 国产欧美另类久久久精品不卡| 91亚洲精华国产精华精华乳| 秋霞一级成人毛片免费看| 自拍偷自拍亚洲精品老妇| 亚洲精品伊人爱爱综合影院| 亚洲一区二区精品国产| 日韩精品在线久av观看| wwwxx日本免费看| 国产99视频免费精品| 91专区中文字幕| 精品久久亚洲中文| 亚洲免费中文电影一区二区三区 | 久久久久精品精品6精品精品| 别揉我奶头啊视频网站| 成a人片国产精品| 91亚洲国产a∨精品一区二区| 精品国产一区二区三区四区导航| 日本50岁熟妇XXXX| 很黄无遮挡在线免费网络| 一区日韩二区人妻精品av| 亚洲国产精品久久久天堂不卡| 2019亚洲欧美日韩在线| 久久精品在热| 男女边摸边吃奶边做gif| 亚洲精品色在线综合| 国产精品成人1区二区免费| 国产午夜精品一区二区三区, | 无遮挡边吃奶边做刺激视频呻| 日本高清视频网站色| 中文字幕在线看片精品| 扒开腿让我添视频| 亚洲十八岁女人毛片水多| 粗大的捧猛烈进出高潮视频| 5B肉蒲团之性战奶水国语| 欧在线一二三四区| 久久99热只有频精品8国语| 国产精品久久久久精品综合一伊人| 欧美亚洲另类激情| 人妻少妇精品久久| 国产精品久久福利网站| 国产超碰人人爽人人做| Jizz护士奶水太多| 9|热爆私密按摩偷拍| 熟女少妇午夜视频在线| 毛片一区二区三区在线免费看| _区二区三区影院| 日韩午夜影片| 久久婷婷人人爽人人干人人爱| 久久伊人精品色婷婷国产| 99久久精品视香蕉蕉| 中文字幕av亚洲无线码天堂| 欧美黑人与少妇一区二区| 日本亚洲视频一区| 日日摸夜夜添夜夜添毛片精选| 国产乱人视频| 亚洲国产日韩一区二区| 欧美一区二区精品国产激情爱| 日本公妇被公侵犯中文字幕2| 超大乳抖乳露双乳呻吟| JAPAN强要VIDEOD警妞| 午夜福利成人av在线| 亚洲av男人的天堂日韩| 精品久久99国产精品| 18禁无遮挡黄网站免费观看| 五月婷婷六月合| 国产福利精品区| 久久久久久免费观看全是精品| 国产00高中生在线视频| 日本一二三区视频观看| 波多野结衣av一区二区av| 国产91乱剧情全集| 重口老太大和小伙乱| aa日本亚洲视频| 久久国产乱子伦精品免费女| 久久精品国产免费久久| 老湿机免费体检区无需下载| 99热久久是国产免费| 在线观看亚洲a| JIZZJIZZ老师学生视频| 久久99成人国产| 黑人与牛交ZOZOZO| av在线不卡免费一区| 国产毛片基地一区二区三| 亚洲中文无码亚洲人成影院| 久久综合狠狠综合久久综合| 18禁男人添女人无遮挡| 公与熄BD日本中文字幕| 国产精品人妻熟女av久久| 公与熄BD日本中文字幕| 午夜亚洲国产理论片中文飘花| 黄床大片一区| 欧美淫根插插插一区二区三区| 国产福利不卡在线观看| 波多AV无码人妻水多760| 30位美人妻无套中出影片1 | 波多野结衣一二三区| 亚洲欧美校园丝袜| 国产成人av大片大片在线播放| 免费av网站中文字幕| 十分钟中文字幕免费视频| 久久一级片儿电影| 大香蕉久久一区二区三区| 男人那种网站视频在线观看| 亚洲v欧美v国产| 欧美网一区二区三区| 亚洲综合色偷偷av| 无遮挡十八禁污污污网站| 十分钟免费观看视频在线大全| 久久人妻公开中文字幕| 亚洲成人精品av在线观看| 国产一区二区在线影院| 国产激情av女片自拍| 不卡午夜福利| 亚洲av影院网站| 国产精品色婷婷久久99精品 | 97久久超碰国产精品| 五月婷婷丁香综合在线观看| 日本少妇特殊按摩2| 欧美爆乳少妇A片| av天堂久久9| 一级a做爰片免费观看一| 日日骑夜夜操| a在线天堂8| 国产精品国产高清国产aⅴ| 欧美精品性色视频在线观看| 2012中文字幕高清在线电影| 放荡的情欲护士2| 老少配老妇老熟女中文普通话| 波多野精品一区二区三区色情| 亚洲国产成人精品一二三区| 亚洲在线观影| 午夜激情久久久久久久| 亚洲欧美一区二区三区孕妇| 日韩av高清在线| 亚洲国产一区二区免费在线观看| 日韩人妻一区二区av| 欧美大片在线观看完整版| 欧美日韩国产高清在线观看| 没有穿内衣的邻居爆乳| 天天添夜夜摸| 亚洲美女久久p| 欧美成人精品区二区三区| 亚洲欧美变态另类丝袜美腿| 嫩模被啪的呻吟不断| 国产精品三级在线观看三级| xoxoxo性ⅹyy欧美| 高清黄色片网址| 人成在线免费视频| 无码国产免费不卡免费| 国产一级做a爱片久久| 丰满巨肥大屁股BBW网站| 乱码午夜av噜噜噜噜| 密臀久久精品久久久久酒店| 亚洲欧美日韩在线系列| 办公室A片在线观看| 久久丫精品久久丫| 看a级黄片毛片| 97久久精品人妻人人玩| av免费不卡在线播放| 一区二区在线视频国产| 台湾综合中文在线| 国产亚洲成av人一级毛片| 亚洲国产成人久久精品软件| 午夜无视频无福利| 亚洲精品国产第一区二区图片| 亚洲老熟妇熟女| 九九热久久国产精品| 孩子边吃奶边哭怎么回事| 欧美日韩国产a v| 免费女人18毛片a级视频在线 | 国产视频精品中文字幕| 蜜臀久久99精品久久宅男| 国产a乱精品一区| 国产看黄视频大全| 最好看最新中文字幕2019| 好男人官网高清免费观看视频| 亚洲欧美国产精品va在线| 少妇人妻偷人精品91| 女人毛片免费观看| 宝贝浪一点腿张开屁股翘起来| 欧美色网站在线观看视频| 国产午夜免费啪观看| 免费观看全部的毛片| 中字幕人妻一区二区三区| 无码任你躁久久久久久久 | 岛国动作片AV在线网站| 亚洲欧美国产专区一区国产亚洲视频 | 九九久久精品国产亚洲av麻豆| 亚洲毛片av| 国产三级国产精品三级在专区 | 国产乱码精品一区二区三区四| 久久久成人免费电影| 老司机亚洲午夜免费电影| 国产永久在线视频观看| 美女脱18下禁止看禁止观看| 亚洲熟妇大图综合色区| 欧美日韩国产图片在线观看| 亚洲欧美V国产一区二区三区| 99久久精品国产亚洲精品| 久久av免费大片| 国产精品一区二区免费在线播放| 忘穿内裤被同桌玩到湿| 黄色理论视频在线观看| 岳的屁股疯狂迎合| 被男人吃奶很爽的毛片| 天天曰天天干夜夜操| 色哟哟国产精品观看| 高清中文字幕一区二区三区 | 成人色网站在线| 国产精品乱码一区二区三区软件| 老司机激情福利视频| 精品欧美一区二区三| 久久蜜精品国产亚洲av| 欧美亚洲另类激情| 欧美日韩一区二区三区v| 和秋霞电影一样的网线| 日韩色v在线| 女人张开腿让男桶喷水高潮| 青青草原国产区| 一级一片视频免费播放| 最新av网站网址在线观看| 亚洲欧美码一区| 天堂а√在线中文在线最新版| 久久播国产精品| 亚洲avav电影av天堂| 特级做a爰片毛片免费69av| 午夜麻豆福利片| 久久成人免费电影| 鲁死你AV资源站| 熟女激情国产| 特a级毛片免费看| 18禁男人添女人无遮挡| 午夜神马久久| 天堂男人av| 人妻の中文字幕| 国产成人午夜91精品麻豆剧场| 91人妻内射综合| 激情视频网站成人| 国产FREEXXXX性播放| 亚洲精品国产av成人精品| 欧美一区二区亚洲专区| 91精品人妻麻豆一区二区| 国产欧美亚洲在线| 公与妇电影三级| 一区,二区,三区免费观看| aa黄片视频免费| 韩国理论电影午夜三级| 亚洲a在线视频免费观看| 国产精品免费AV片在线观看| 99久久人妻中文字幕| PREGNANT小孕妇| 色乱码一区二区三区免费观看| 黄色日韩一级二级| 精品国产伦一区二区三区在| 国产乱码精品一区二区视频| 欧美牲交A欧美牲交AⅤ另类| 一二三四视频社区在线播放中国| 在线看国产黄视频| 日韩欧美成人免费| 岛国精品一区免费视频在线 | www.内地欧美日韩一区二区三区| 国产性色强伦免费看视频| 国产综合久久一区二区| 午夜福利亚洲自偷自拍| 一区二区日韩免费视频| 在线影院一区二区三区| 欧美成人啪啪噜一区二区三区| 亚洲国产成人麻豆| 午夜福利免费试看| 亚洲色图欧美自拍偷拍| 日韩免费视频一区二区三区| 成年女人观看永久免费视频| 国产麻豆69| 亚洲欧美综合成人网| 可以免费看毛片的网站| 网站在线观看色| 99re66久久在热青草| 看又色又爽成年女人毛片| 国产精品久久久久久久久成人| 99视频只有这里有精品| 久久av喷吹av高潮av萌白| 国产乱码精品一二三四在线观看| 精华精华液有什么用| 第一次进不去怎么办| 午夜福利国产精品久久婷婷69| 黄床大片一区| 美女福利精品久久| 欧美极品在线第一页| 午夜国产精品啪啪| 欧美高清另类hdvideosex| 情色av一区二区三区| 熟女人妻のav中文字幕| 有码亚洲一区二区| 国产精品又黄又爽又色的视频| av在线播放不卡网| 97SE亚洲国产综合自在线| 日韩欧美久久久免费精品| 国产一区二区人妻三区| 黑人性暴力视频| gogo大胆午夜人体视频网| 欧美色播视频网| 中国人妻在线视频| 国产亚洲成av人片在一线观看| 亚洲龙腾小说视频图片一区| 免费的岛国av动作片免费观看| 亚洲无人乱码| mm131美女视频毛片| 人妻激情乱视频一区二区三区| 婷婷六月久久综合丁香| 少妇人妻偷人精品免费视频| 黑人巨大欧美成人精品一区二区| 中国老熟妇MATURESEX| 内射白嫩的小少妇33p| 国产avxxx| 免费视频好湿好紧好大好爽| 中国女人18毛片水真多| 欧美亚洲精品在线看| 黑人大荫蒂高潮视频| 亚洲激情av色| 国产视频看看一区二区三区| 搞黄视频大全在线| 亚洲精品少妇熟女| 日韩欧美精品一区二区三区经典| 国产av零色中文网| 亚洲av高清一区二区重口| 亚洲av国产aⅴ精品一区| 黄频免费观看视频| 人妻内射三区| 寂寞影院一区二区三区| 人妻无码不卡中文字幕在线视频| 精品一区二区激情免费视频| 老司机激情福利视频| 亚洲精品成人久久电影网| eee在线播放免费人成视频| 色午夜日本高端视频| 中文字幕aa在线| 亚洲精品一区二区三区aⅴ| h片在线观看视频不卡| 在线观看国产日韩av| 18禁裸乳羞羞无遮挡在线视频| 亚洲精品人人夜夜天天| 野花社区在线观看免费直播| 国产在线看黄视频| 久久伊人国产一区二区| 毛片av免费| 少妇人妻超碰| 91香蕉在线精品视频| 日本午夜高清视频| 日日噜噜夜夜狠狠视频欧美人| 久草福利在线精品| 成人免费av在线播放在线| 久久久精品94久久精品| 宝贝浪一点腿张开屁股翘起来| 伊人精品成人一区二区三区四区| 亚洲高清av一区二区三区网站| 亚洲av午夜精品久久看一区| 99热之这里只有精品网| 一区二区三区亚洲不卡| 亚洲最大91av色| 99久久久区一区二区三| 白袜男高中生GAY资源| 亚洲人成色777777国产| 久久久亚洲av国产精品| 99精品欧美一区二区三区四区 | 精品一区二区激情免费视频| 国产精品成人av色一区二区| 剧情片HD在线观看| 九九热在线观看精品| 日本边摸边吃奶边做gif视频| 精品国内亚洲2022精品成人| JUL-672美人妻神宫秘书 | 亚洲一卡2卡3卡四卡国色天| 在线视频黄国产| 国产日韩欧美高清一区精品| 一级av一片久久免费观看| 一卡二卡三卡四卡高清免费| 波多野结衣一二三区| 激情内射视频网站| 免费看男女啪啪视频的网站| 免费观看av不卡网站| 免费在线观看人成视频| 国产老妇bbbwbbb| 亚洲,欧美,香港三级精品| BT在线WWW网在线| 日本XXXX| 亚洲国产精品天堂一区二区三区 | 美女被插下体视频网站| 国产精品被熟女| 国产一区精品| 亚洲中文高清字幕在线播放| 欧美黄色第一页| 国产精品久久自在自线不卡| 青娱乐精品视频免费在线观看| 中文字幕在线9页| 日韩一区二区三区免费精品视频 | 伊人久久亚洲综合大香线蕉| 最新国产视频一区二区三区| 国产性猛交乱大交| 亚洲av宅男天堂| 丰满少妇做爰视频免费视看| 国产精品一区二区三区a| 色AV专区无码影音先锋| 久久99热精品无删减版| 噗嗤噗嗤太深了啊快停下| 日韩高清不卡av在线| 绯色av少妇精品人妻精品| 十分钟在线观看视频国产高清www 久久国产免费一区二区三区 | 三级a毛片免费| 好男人社区神马WWW| 欧美韩日国产在线| 不戴套交换系列17部分吴琴| 怡红院亚洲色图| 亚洲欧美偷自拍| 国产亚洲欧美高清在线观看| 国产欧美日韩中文字幕在线 | 久久亚洲专区午夜福利| 老色鬼在线精品视频在线观看| 好爽视频在线观看| 成人久久av| 国产精品原创久久| 色呦呦网站入口| 麻豆av网一区| 激情视频免费一区二区| 欧美精品一区二区三区| 欧美黄色a级视频| 欧美日韩av视频一区| 免费观看又黄又劲爆的视频免费| 天堂视频一区二区三区成人| 吃美女奶头的视频网站| 小雪的13又嫩又紧又多水| 东方在线一级毛片| 日本欧美电影在线观看| 91精品国产综合久久香蕉网| 日本免费一区二区三区伊甸园| 小雪的13又嫩又紧又多水| 黄色视频免费不卡播放| 亚洲avav天堂av在线网| 自拍偷亚洲综合第9页| 久久成人一区二区精品| 国产精品成人av色一区二区| 极品午夜福利1000在线| 东北少妇高潮流白浆在线观看| a级毛片黄色视频在线播放| 青草永久福利| 99精品国产热久久| 久久香蕉精品网| 成人高清精品亚洲| 一区二区在线视频国产| 免费日本黄色视频的网站| 日本午夜噜噜影院| 亚洲欧洲日产精品| 一个人免费视频在线观看| 欧美户外野战在线大全| 国产欧美日韩黄片| 中文字幕无码日韩专区免费| 国产福利在线免费观看视频| 亚洲AV无码专区国产乱码| 久久大香香蕉国产| 女人喷液抽搐高潮视频| 日本乱偷中文字幕| 国产免费牲交视频免费下载| av在线免费观看国产精品| 国产精品久久亚洲一乱| 亚洲AV综合AV一区二区三区 | 忘忧草蜜芽188| 中文字幕无线码一区二区| 亚洲综合性AV私人影院| 亚洲高清国产拍精品闺蜜合租| 禁室培欲3:香港情夜| 自偷自拍亚洲综合精品第一页| 欧美亚洲一区国产| 真实小泑女网站国外俄罗斯| gogo大胆午夜人体视频网| 亚洲欧美日韩在线二区| 免费看日本二区| 午夜精品一区二区三区软件| 午夜大片久久久久成人| 色综合欧美亚洲另类久久| 精品国产一区二区三区av网站| 黄片视频无遮挡观看| 成人高清av| 男女激情内射免费观看| 国产av色黄网站| 两口子交换真实刺激过程| 久久一级黄片免费| 国产精品私拍在线观看| 国产呦萝小初合集密码| 精品一线二线三线区va| av有码在线| 国产黄在线视频免费播放| 亚洲a在线视频免费观看| 亚洲欧洲av在线| 性感美女黄频大全免费视频网站 | 色婷婷av一区二区三区久久| 蜜桃av免费网站| 国产成人精品福利久久| 超碰国产对白| av在线欧洲| 国产亚洲hd在线观看| 一本色道久久| 久久国产一区二区四区| 国产精品噜噜视频| 亚洲国产黄片免费| 99re视频在线观看免费| 亚洲精品一区高清在线观看 | 国产另类丝袜欧美在线| 亚洲中文字幕日韩| 国产情侣色在线| 日韩在线中文字幕亚洲| Chinesemature老熟妇高潮| 小荡货又紧又爽奶头好湿视频| 嫖农村40的妇女舒服正在播放| 高清毛片免费观看视频网站| www.我爱我色.com| 亚洲精品中文字幕不| 国产精品无码一区二区在线观看| 成人免费无码大片A毛片不卡| 成人黄色片三级| 三级伦理电视剧| 精品国产一区二区三区不卡| 成人av一区二区三区| 特级婬片女子高清视频| 波多野精品一区二区三区色情| 男女国产视频网站| 久久国产亚洲精品嫩草| 黄片在线免费观看最新视频| 女同亚洲一区二区无线码 | 2021国产成人精品视频| 亚洲国产嫩草影院在线观看| 一欧美一区二区三区四| 亚洲成人a级片| 夜夜操大b网站| 99午夜福利一区二区| 777在线欧美| 精品久久久久久久久久免费视频 | 亚洲精品在线99| 国产成av不卡在线观看| 国产黄色三级三级三级av | 亚洲欧美无人区乱码| 女人被狂c到高潮视频在| 国产成人av在线观看网站| 日日摸日日操夜夜爽| AV区无码字幕中文色| 女生黄频黄色视频免费观看| 亚洲欧美日韩网址| mm1314亚洲国产精品| 精品视频一区二区三区免费观看| 日韩欧美久久久免费精品| 久久亚洲熟女av| 暖暖视频播放免费韩国| 亚洲熟女综合av| 福利美女国产三级| 日日摸夜夜添夜夜| 亚洲精品人人夜夜天天| 国产一级特黄高清在线大片| 99免费的精品视频| 国产成人一区二区精品播放| 娇妻被朋友粗大猛烈进出高潮视频| 精品日本免费一区二区三区在线| 欧美精品久久婷婷| 午夜福利啊啊| 韩漫亚洲一区二区三区四区在线| 迷人的保姆在线观看| 亚洲天堂网最新版| 国产av电影区二区三| 国产视频福利免费看| 男女无遮挡边做边模视频| 亚洲欧美成人综合精品| 国产精品高清一区二区不卡片| 嗯~~~爽~~~~再快点| 激情视频图片在线观看| 国精品午夜福利视频不卡无毒| 无遮挡无码无修3D纯肉动漫| 国产高h片在线观看| 91嫩草影视久久| 5D肉蒲团之性战奶水| 免费看不卡的av| 国产老熟女激情露脸| 床震吃奶摸下的激烈黄文| 亚洲国产精品国产精品| a欧美日韩高清在线播放| 日日爽夜夜拍| 激情婷婷综合久久久久| 亚洲国产日韩综合久久| 午夜无遮挡在线免费观看 | 日日摸夜夜操av| 男人女人特黄视频| 国产激情av女片自拍| 男女一边摸一边做爽爽的动态图| 幻女BBWXXXX国语| 久久精品aⅴ一区二区三区四区| 一个人免费在线视频| 一区二区三区国内精品视频| 国产夜夜夜夜夜夜夜夜夜| 国产熟女五十路一区二区| 韩国三级午夜理论| 国产乱人伦偷精品毛片| 日韩亚洲AV无码一区二区三区 | 少妇熟女精品| 97人妻人人爽| 北京妇女BBW| 欧洲亚洲综合| 2019亚洲欧美日韩在线| av电影中文网址| 国产一区二区三区高清视频| 成年人的黄色视频永久免费| 国产免费观看a大片的网站| 午夜理论2019理论无码| 久久亚洲网站中文字幕| 性AV无码天堂VR专区| 亚洲一区二区av| 亚洲伊人久久麻豆| 男同VIDEOS 外卖引诱| 国产色婷亚洲99精品| 东京复仇者在线观看| 亚洲欧洲日产国码中文字幕| av网站在线观看亚洲| 综合久久国产精品| 亚洲欧美日韩自偷自拍| 久久伊人国产一区二区| 我和闺蜜在公交被八人伦| 99热这里只有精品伊人大| 99RE6热视频这里只精品首页| 99久久婷婷这里只有精品| 日本一本二本三区中文高清| 中国一区二区乱码| 麻豆国产成人AV在线| 国产精品一区二区三区绯色av| 一区二区三区+在线播放| 精品久久久久久久久久性| 少妇高潮捆绑喷水免费观看| 又粗又爽又黄视频| 18男同志GAY亚洲| 国产日韩亚洲欧美第一第二区 | 亚洲av码在线观看| 人禽交 欧美 网站| 国产精品40熟女一区二区| 无码码男男作爱A片在线观看| 97国产成人精品视频免费| 亚洲JIZZJIZZ在线播放| 二区三区午夜| 肉体裸交137日本大胆摄影| 久久久久久中文字幕| 人妻少妇精品久久人妻| 91一区二区三区在线观看| 国产精品原创巨作?v网站| 亚洲国产成人精品久久久国产成人一| GV天堂GV无码男同在线| 免费在线观看永久免费av| 熟妇人妻中文AV无码| 国产在视频线精品视频午夜视频| 精品国产亚洲不卡| 有码在线观看不卡av| 超碰成人久久| 亚洲午夜久久久影院| 精品久久久影院| 丁香在线视频观看| 91视频日韩欧美| 男女动态无遮挡动态图| 少妇人妻视频网站| 亚洲一区二区三区最新网址| 痴汉中文字幕在线观看| 国产日韩+欧美| 九九热久久国产精品| 一级二级三级国产| 国产日韩欧美高清一区精品| 国产AⅤ无码专区亚洲AV| 亚洲美女天堂婷婷| 日本熟妇人妻XXXXX野外| 欧美黑人精品一区二区三区| 最近最新中文字幕大全免费一| 99热精品就在这里| 丝袜美腿诱惑国产三区| 大黑吊插逼电影| 国产午夜精品一区二区三区, | 国产精品一区二区在线观看成人| 国产avxxx| 3D动漫H在线观看网站蜜芽| 麻豆视频成人免费观看| china东北露脸熟女pαge|| 国产人妻一区二区麻豆| 性做爰片免费毛片| 免费一级做a爰片性色毛片| 亚洲永久精品av| 久久人人爽av精品| 农村野外强奷在线播放电影 | 国产欧美精品一区二区性色| 免费国产一区二区三区在线播放| 亚洲怡红院日本| 五月天丁香电影| 好男人好资源在线播放| 又黄又刺激又硬又爽的视频| 国产综合久久一区二区三区| 久久人成人国内精品| 欧美日韩亚州在线| 日本午夜电影区一区| 日本激情电影一区二区| 一二三区人妻| av在线国语对白| 黑人后入高潮 | 俄罗斯XX性幻女18| 国产一区二区在线观看了| 99久久久久精品影院| 国产乱码精品一区二区三区蜜臀| 亚洲成人av在线播放国产精品| 超强国产野战| 在线播放网站亚洲| 熟女人妻一区二区三个区 | 欧美变态另类牲交ZOZO| 离异熟女不戴套456| 美女高潮流白浆在线免费观看| 国产无遮挡无码视频在线观看| 美女脱了内裤打开腿让人的桶 | 亚洲av亚洲av| 在线观看成人一区二区三区四区 | 久久99精品99久久久久久精品| 人妻丰满熟妇AV无码区| 风骚老熟女视频| 色妞www精品视频| 精品三级国产三级在线专| 国产在线卡精品| 亚洲国产一区二区三区网站| 亚洲五码另类全集| 影音先锋每日最新AV资源网| 高清撒尿HDTUBE| 女人高潮一级毛片| 男人的天堂三级网| 亚洲精品成人av观看孕妇| 成人黄色一级影片| 亚洲欧美另类成人综合| 欧美日韩成人精品一区二区三区| 丰满人妻一区二区三区52| av在线免费观看国产| 毛片一级毛片免费观看| 天堂av在线免费观看| 99久久精品国产精品亚洲精品| 亚洲成av人在线视午夜片| 国产成人亚洲无吗淙合青草 | 天天狠天天透天干天天| 亚洲区国产一区二区| 国内特级毛片视频| 欧美国产日韩一二三区| 欧美亚洲综合天堂| 18禁止观看强奷视6美女裸体频| 熟女少妇大全视频| 天堂影院av不卡毛片| 亚洲精品国产色婷婷电影| 中文有码人妻熟妇| 张柏芝用嘴给陈冠希高潮| 伊人丝袜av| av制服丝袜诱惑天堂| 五月综合丁香| 国产日韩一区二区三区精品不卡 | 久久久久免费一级视频| 999精品视频在线免费看| 日日夜夜久久精| 中文字幕在线丝袜| 久久精品国产一区二区三区网站| 日韩欧美亚洲视频在线观看| 国产一级做a爱片久久| 欧美乱人伦中文字幕在线| 在线观看色一区| 成年女人20级毛片毛片免费| 黄色视频免费a级毛片| 热国产热有码| 伊人欧美日韩在线观看视频| 亚洲成人网av| 日韩无6码一区二区| 国产成人精品免费视频大全| 国产精品国产三级国产av无| 在线观看永久免费网站网址| 不卡av中文在线观看| 久久这里只有精品777| 久久人人爽爽人人爽人人爽aⅴ| 国产超碰人人爽人人做| 亚洲高清国产拍精品闺蜜合租| 亚洲精品视频在| 午夜永久视频| 婷婷精品国产亚洲av不片| 免费毛片a级观看| 国产综合久久一区二区三区| 女人十人毛片免费观看3o分钟| 久久国产av人人做人人爽| 国产精品久久人妻色戒| 日本老师和学生做XXXX| 厨房玩弄人妻系列| 国产女人真实乱精品| 欧美人人妻人人| 国产av香港| 一区日韩二区人妻精品av| 亚洲精品乱码b| 中文字幕第一页网址| 少妇熟女图亚洲| 一本色道久久亚洲精品综合| 男女国产视频网站| √天堂中文资源在线8| 免费aaaa级毛片网站| 欧美色网站在线观看视频| 天天狠天天透天干天天怕处| 日本做受高潮好舒服视频| 美女扒开胸罩露出奶头的视频| 少妇午夜性影院私人影院| 少妇高潮捆绑喷水免费观看| 亚洲国产精品专区在线播放| 午夜不卡的av| 日韩亚洲区欧美精品| 午夜精品福利久久乐| 在线乱码av| 亚洲欧美日本黄大片| 欧美精品国产精品日韩精品 | 三级大全国产精品风险| 欧美在线成人观看视频| 性欧美1819性猛交| 美女又黄又爽在线观看网站| 工口网站在线观看| 99精品免费观看视频88| 国产精品免费久久久久影视| 国产精品熟女一区二区三区四区| 婷婷亚洲伊人| 一个人免费观看在线播放| 久久久久久中文字幕| 精品一区二区三区四区乱码| 亚洲精品一区二区不卡| 日韩午夜高清福利老司机| 亚洲中文字幕美利坚久久| 一区二区三区免费日本| 在线视频自拍久| 国产精品36页| 男女啪啪无遮挡| 一个人免费在线视频| 国产全黄视频免费看| 综合欧美一区不卡中文字幕| av在线日韩国产| 婷婷中文字幕熟女人妻| 天天做天天干夜夜操| 久久婷婷国产亚洲精品综合| 97青青草原| 日本激情在线看免费观看| 亚洲欧美日韩综合一区| 成在线人免费视频一区二区| 在线观看国产精品普通话对白精品| 国产JJIZZ女人多水| 青岛熟妇有对白叫亲爱的视频 | 日韩亚洲欧美综合| 国产一片内射| 国产成人一区二区18| 日韩网站免费观看| 亚洲国产一区二区免费| 亚洲男人天堂免费在线| 在线视频网站中文字幕| 久久精品亚洲日本桃乃木香奈| 97热精品视频在线观看| 人妻系列无码专区久久五月天| 日本网站在线免费看| 亚洲欧美人成网站在线观看看| 四个闺蜜把我弄高潮了| 小sao货cao得你舒服么视| 中国特级淫片久草视频 | 玩同事少妇不带套视频 | 龚玥菲版新梅瓶在线观看| 日韩欧美精品在线第一页| 亚洲男人天堂999| 99看片在线免费观看| 久久国产乱子伦精品免费女人国产| 国产精品毛片v一区二区| 极品少妇高潮喷水抽搐91| 97夜夜摸夜夜爽夜夜喊| av男人天堂精品久久| 亚洲精品视频在| 久久青草精品38国产| 久久av蜜桃一区二区三区| 老湿机69福利区无码| JIZZ全部免费看全片| 欧美一级a爱做片| 欧美性激情久久久久| 超碰97视频免费在线观看| 精品视频永久免费观看| 丰满人妻熟妇乱又伦精| 岛国免费动作片AV无码| 男女真人后进式猛烈动态图无打吗| 精品三级国产在线看| 国产精品乱码久久久久久| 所有免费永久岛国av网址| 一级a爱做片在线观看免费| 男人捅女人黄色视频在线| 亚洲成av人影院一区二区| 欧美一区二区三区精美视频| 精品久久久久久久久av| 色老99久久九九爱精品| 人伊香蕉久久精品| AV第一福利在线导航| av一区二区三区在线观看免费| 黑人巨茎大战俄罗斯美女| 国产精品久久久久一区二区三区密| 亚洲国产成人av一区| 午夜鲁丝在线观看| 日本一卡二卡三卡四卡2021| 欧美熟妇多毛又多水免费观看| 99久久久久精品影院| 久久精品人人做人人爽老司| 寂寞影院一区二区三区| 一区二区国产精品欧美| 亚洲国产男同同性VIDEOS| 久久青青狼人影院| 黄色视频免费看永久免费| 亚洲精品中文字幕无限乱码| 亚洲中文av免费| 99re视频免费看| 中国女人大白屁股ASS| 国产精品毛片一区二区排| 欧美亚洲综合精品视频| 妓女影院永久免费| 一区二区亚洲精品国产av| 精品成人av大片| 成人手机av在线| aa少妇高潮大片免费观看| 国产又色又爽又免费视频| 亚洲最大成人av| 中文字幕在线视频18| 亚洲国产精品av麻豆一区二区| 久欠精品国国产99国产精2021| 精品久久久久久久毛片微露脸| 999国产成人免费视频| 岛国在线小视频| 欧美视频亚洲精品| 少妇午夜福利一区二区三区| 人妻少妇精品中文字幕91| 午夜A片无码1000集免费看| 伊人加勒比久久av| 国内精品伊人影院| 欧美色吧综合| 青青草视频资源在线观看| 特级做a爰片毛片免费69av| 一级人爱免费视频黄片| 欧美激情久久综合| 在线观看一区二区三区日韩| 男人女人高潮的视频| 女人18毛片免费看看| 欧美日韩国产一区在线观看| 亚洲另类激情专区小说图片| 中文字幕精品一区二区三区我和| 国产精品午夜宅男| 亚洲欧美人成影视在线| 奶子好大好舒服视频| 国产一区二区视频精品| 日本极品少妇XXXX| 国产精品精品网| 国产国产三级精品久久日本| 加山夏子中文在线播放 | 男女gif啪啪| 成人永久福利视频免费观看 | 国产91内射毛片| AV无码A在线观看| 亚洲国产色综合| 青春草视频在线精品| 琪琪婷婷综合久久| 欧美日韩国产图片在线观看| 日韩一二三区视频免费观看| 欧美久久伊人密| 国产一级二级三级区| 精品亚州av一区二区三区 | 国产精品久久久久久麻辣| 1024手机看片你懂得国产| 国产一区黄色视频在线免费观看| 18禁无遮挡在线看男同| 亚洲精品成人久久久久| 99国产精品欲一区二区三区| 亚洲欧美有码无| 久久久久人妻精品乱码| 18禁止观看美女脱裤子男生桶| 国产精品99久久99久久久不卡 | 国产精品乱码久久久久| 国产精品欲乱视频| 中文字幕av亚洲无线码天堂| 国产精品免费久久久久久久| 日本高清色视频免费观看| 亚洲午夜精品中文字幕| 国产精品久久草| 2012国语免费观看在线播放| 久久99热6这里只有精品| 欧美日韩三级在线播放| 中国av所有黄片播放| 久久久久久国产精品中文| 污18禁图无遮挡开腿| 无码人妻系列精品| 亚洲欧洲精品中文字幕不卡| 免费国产一区二区三区在线播放| 亚洲熟妇大图综合色区| 十分钟在线观看免费观看完整| JAPANESE日本丰满少妇| 后入视频在线免费观看| 亚洲国产欧洲久久| 成人亚洲1区二区| 初学生免费自慰网站高清| 日本网址免费中文| 亚洲激情熟女| 一区,二区,三区免费观看| 久久精品国产99久久72部| 男人舔女人下边高潮全视频| 国产免费观看黄久久av'| av网站在线观看亚洲| av喷水高潮喷水免费看| 亚洲中文字幕在线无码一区二区| 国产激情欧美一区二区| 亚洲专区12p| 亚洲AV综合AV一区二区三区| 国产精品40熟女一区二区| 尤物av永久| 亚洲精品乱码国产精品乱码| 在线观看国产免费a∨网站| 欧美日本视频免费观看| 精品人妻少妇一区二区| 五月天色婷婷激情网| 黄色成人毛片网站| 国产91精品导航| 国产免费黄色观看视频| 亚洲婷婷狠狠爱综合网| 天天干天天操夜夜做| 少妇精品久久久久久久| 无遮挡边吃奶边做刺激视频呻| 色哟哟网站在线观看| 国产精品丝袜黑色高跟鞋视频| 日日摸夜夜添夜夜添无码国产 | 99久久久国产露脸精品| 桃花在线观看视频| 一区二区神马影院| 看a级毛片在线观看| 久久国产精品成人免费| 精品国产免费网站二区二区| 色8久久高潮影院| 奇米影视7777久久精品人人| 欧美一级日韩不卡播放免费| 亚洲国产另类欧美| 一区二区日韩免费视频| japanese国产真实乱| 最近最新中文在线观看视频| xxx日本一二三区不卡| 亚洲男人天堂免费在线| 毛片在线一区二区三区| 亚洲免费av电影| 欧美人人妻人人爽| 在线观看一区二区三区日韩| 国产精品久久久人人看人人| CHINESE乱子伦XXXX| 国产人妻人人爽人人澡| 摸进她的小内裤里黄漫画| 一级免费a级片免费视频| 六十熟妇乱子伦视频| 国产又黄又爽又色高清免费视频| 亚洲av第五页| 久久国产精品久久免费| 老司机性感三级视频| 五月天国产成人AV免费观看| 亚洲欧美综合日韩| 女人操男人在线观看| 国产成人精品一区91| 日韩不卡在线电影| 杨门十二寡妇艳史完整版| 亚洲精品一区二区不卡| 日本高清一二三区| 日韩人妻精品av在线| 亚洲另类国产欧美一区二区| 成人一区二区av在线观看| 五月婷婷六月丁香免费网| 国产高清真实破学生处| 精品亚州av一区二区三区| 性生大片免费观看性| 手机av网址大全| 亚洲av大片欧洲av大片| 欧美老人与小伙子性生交| 亚洲首页av在线| 日本熟妇人妻系列专区| 观看不卡av| 欧美日韩视频高清一区二区三区二| 下一篇:白浆四溢(18P)| 欧美日韩成人伦理电影| 污18禁图无遮挡开腿| 熟女少妇午夜视频在线| 我去也我来也www色| 国产人妖视频一区二区| 亚洲中文字幕久久一区| 一级毛片精品| 公与妇电影三级| 男人天堂大片| 女人ZOZOZO人禽交| 被拉到野外强要好爽流水| 极品粉嫩国产免费观看| 色伊人亚洲乱码| 91专区中文字幕| 在线日韩精品第一页| 亚洲欧美日韩久久精品狠狠| 欧美日韩第一区二区三区国产| 亚洲高清av一区二区三区网站| 成人纯h小说网站| 国产美女主播喷水视频| 一级黄色免费不卡视频| 国产精品免费在线观| 欧美成人精品首页| 日韩精品毛片久久久久久久| 天天躁夜夜躁狠狠综合2020| 国产真实乱淫95视频| 亚洲中文有码字幕| 日韩免费码中文在线观看| 一区网站在线观看| 少妇激情av| 久久亚洲国产精品成人| 老司机深夜福利未满十八| 人人妻人人爽狠狠干| 欧美性野久久久久久久久| 中文资源在线天堂91| 成人精品天堂一区二区三区视频| 特级黄色视频免费| av网站网页在线观看| 亚洲制服丝袜av| 亚洲av免费毛片| 久久久久久精品人妻免费视频| 男男chinese男男资源| 99久久婷婷国产亚洲综合精品| 夜夜操夜夜摸| 久久精品国产欧美日韩91| 女高中生自慰污免费网站| 97人人妻人人插人人爽| 男同黄片免费观看视频| 麻豆女人毛片| 中文字幕在线视频日韩欧美| 免费国产又色又爽又黄的视频| 国产欧美日韩中出| 亚洲欧美日韩一区二区三区福利| 国产精品久久亚洲一乱| 日本色午夜视频| 欧美日韩一区二区三区j | 日日摸夜夜添夜夜爱| 国产精品伦二区三区| 亚洲av片一区二区三区免费| 人人妻人人爽欧美| 色av中文字幕| 成人免费A级毛片无码网站| 成年性午夜免费网站蜜蜂| 久久青草草视频| 久久99国产精品免费看| 亚洲av国产日韩| 国产午夜福利精品久久| 极品少妇人妻视频| 综合国产亚洲精品a在线观看| 久久综合亚洲| 亚洲精品人妻在线视频观看| 韩国乱码伦视频免费| 内射多人视频| 99re6热在线精品视频| 国精产品999免费久久av| 日韩一二三区视频免费观看| 老板不让穿乳罩随时揉| 一区二区三区免费看毛片| 亚洲黄片大全在线观看| 色妞www精品视频| 国产XXXX做受视频| 中文字幕天堂av| AV无码A在线观看| 久久日韩亚洲一区| 日韩有码av电影在线免费观看| 久久看电影久久久久国产 | 午夜福利一区二区三区在线播放 | 天堂AV无码AV一区二区三区| 极品午夜福利1000在线| 国产精品欧美观看| 黄色一级大片看看| 波多野结衣一二三区免费| 久久午夜夜伦鲁鲁片免费无码| 国产又黄又粗又硬又爽视频| 日本在线高清在线视频h看片| 美女淫交视频| 大码成人一级视频| 人妻激情乱视频一区二区三区| 扒开老女人毛茸茸的黑森林| 国产精品呻吟av久久高潮| 日韩亚洲av电影在线观看| 欧美成人18网站| 久久综合网亚洲国产| 亚洲中文字幕无码久久2017| 边吃奶边摸下面的免费视频| 美女黄网站免费福利视频| 久久人妻少妇偷人精品综合| 逼毛av专区| 国产精品最新在线观看| 查理与陈宝莲一级毛片| 22中文网久久字幕| 深夜福利一区二区在线观看| 欧美成人午夜伦理| 午夜情深深| 激情五月亚洲综合图区| sepapa国产在线| 国产刺激真实乱对白| av不卡网站在线观看| 久久久日本中文字幕一区| 亚洲欧美日韩无卡精品| 日本少妇寂寞少妇AAA| 国产成人精品亚洲79| 97午夜理论电影影院| 亚洲视频在线观看视频免费| 亚洲专区精品在线| 国产熟女真实乱精品| 啪啪免费福利午夜| 欧美黄色视频在线看| 久久精品免费视频17| 亚洲免费av电影网| 久久久精品国产亚洲av高清涩受| 2020亚洲欧美日韩在线| 热の综合热の国产热の潮在线| 日韩精品一级黄色| 恋老玩老头兴奋HD| 丁香五月亚洲综合深深爱| 777奇米视频一区二区三区 | 中文有码人妻制服| 成在线人视频免费视频网页| 国内精品伊人久久久久7777| 国产人伦真实精品视频| 亚洲嫩草影院| 丝袜美腿噜噜| 亚洲av手机免费在线| 免费精彩不卡av| 久久午夜福利一级精品| 一区二区三区视频香蕉| 黄片视频无遮挡观看| 新99精品免费视频| 亚洲av人人爽人人爽人人爽| 国产三级毛毛片| 午夜福利黄片免费看| 国产三级电影在线免费播放| 午夜福利视频更新| 美国成年女毛视频| 国产av日韩亚洲| 观看免费的黄色毛片| 人妻天天摸日日碰夜夜爽| 国产精品亚洲怡红院使用方法| 白饿罗斯毛片| 久久久精品亚洲不卡av| 亚洲免费午夜电影| 欧美日韩国产高清大片| 一级黄色免费不卡视频| 大香蕉视频一区二区三区| 夜夜添夜夜爽| 欧美午夜夫妻性生活视频| 久久精品视频免费看看| 美女被高潮视频网站| 亚洲国产av系列|