СИСТЕМА СНИЖЕНИЯ ТОКСИЧНОСТИ ОТРАБОТАВШИХ ГАЗОВ (для моделей с вспомогательной системой подачи воздуха в нейтрализатор) ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ

PROCEDURE


  1. CHECK PURGE VSV


    1. Connect the GTS to the DLC3.

    2. Remove the V-bank cover Click here.

    3. B001XCG

      Slide the clip and disconnect the hose (connected to the canister) from the purge VSV.

    4. Start the engine and turn the GTS on.

    5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control.

      OK
      Tester Operation Specified Condition
      Activate the VSV for Evap Control: OFF Purge VSV has no suction
      Activate the VSV for Evap Control: ON Purge VSV has suction

    6. Connect the hose (connected to the canister) to the purge VSV and slide the clip to secure the hose.

    7. Install the V-bank cover Click here.

  2. INSPECT FUEL CUT-OFF RPM


    1. Start and warm up the engine.

    2. Open the throttle valve and keep the engine speed at 3000 rpm.

    3. Use a sound scope to check for injector operating noise.

    4. Check that when the accelerator pedal is released, the injector operation noise stops momentarily and then resumes.

      If the result is as not specified, check the injector, wiring and ECM.

  3. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS


    1. Check that there are no cracks, leaks or damage.

      Tech Tips

      Separation of the engine oil level dipstick, oil filler cap, ventilation hose, etc. may cause an engine failure or engine malfunctions. Disconnection, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will allow air suction and cause an engine failure or engine malfunctions.

      Note


      • Detachment or other problems with the engine oil level dipstick, filler cap, ventilation hose and other components may cause the engine to run improperly.

      • Disconnection, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will allow air suction and cause an engine failure or engine malfunctions.

      If the result is not as specified, replace parts as necessary.

  4. CHECK HOSES AND CONNECTORS


    1. Visually check for loose connections, sharp bends or damage.

  5. CHECK FUEL TANK ASSEMBLY


    1. Visually check for deformation, cracks or fuel leakage.

  6. INSPECT PRESSURE SENSOR

    B001WWXE15
    Text in Illustration
    *A for Bank 1
    *B for Bank 2
    *1 Pressure Gauge

    1. Connect a pressure gauge to the air pressure sensor as shown in the illustration.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) and turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Air Pump Pressure (Absolute) and Air Pump2 Pressure (Absolute).

    5. Check that the pressure displayed on the GTS fluctuates when applying pressure to the pressure sensor with the pressure gauge.

      Note

      Do not let foreign matter enter the sensor when applying pressure.

      OK
      Pressure fluctuates in response to pressure applied with pressure gauge.
    6. B001XBME03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Switching Valve)
      *b for Bank 1
      *c for Bank 2

      Check the power source voltage.


      1. Disconnect the connector.

      2. Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Switch Condition Specified Condition
        C137-2 (VC) - C137-4 (E2) Engine switch on (IG) 4.75 to 5.25 V
        C138-2 (VC2) - C138-4 (E22)

        If the result is not as specified, check the wiring and ECM Click here.