СИСТЕМА СНИЖЕНИЯ ТОКСИЧНОСТИ ОТРАБОТАВШИХ ГАЗОВ ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ

  1. CHECK FUEL CUT RPM

    1. A00DTWF

      Increase the engine speed to at least 3500 rpm.

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

    3. Check that the operating sounds stop momentarily and then resume when the throttle lever is released.

      Tech Tips

      Measure with the A/C off.

      Fuel return rpm
      1400 rpm

  2. CHECK FOR LEAK

    1. A00DV22E01

      Visually check that the hoses, connections and gaskets have no cracks, leaks or damage.

      Note

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

      • Air suction caused by disconnections, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will cause engine failure or engine malfunctions.

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

  3. INSPECT EVAPORATIVE EMISSION CONTROL SYSTEM

    1. Connect the intelligent tester to the DLC3.

    2. Disconnect the fuel vapor feed hose shown in the illustration from the purge valve.

    3. Start the engine.

    4. A00DSDZ

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

    5. Check that vacuum occurs at the purge VSV port.

      If vacuum does not occur, check the following items.

      • Purge VSV

      • Clogging in the fuel vapor feed hose connecting the intake air surge tank and purge VSV

      • Voltage at the ECM PRG terminal

    6. Exit Active Test mode and reconnect the fuel vapor feed hose.

    7. Enter the following menus: Powertrain / Engine and ECT / Data List / EVAP Purge VSV.

    8. Warm up the engine and drive the vehicle.

    9. Confirm that the purge VSV opens.

      If the result is not as specified, replace the purge VSV, wire harness or ECM.

  4. INSPECT CHARCOAL CANISTER

    1. Inspect the ventilation of the canister.

      1. Close port B, apply compressed air into port A, and check that the air flows out from port C.

        A00DTRQE01

    2. Inspect the check valve.

      1. Close port C, apply compressed air into port A, and check that the air flows out from port B.

        A00DSK5E01

      2. Close port C. Using a vacuum pump, apply a vacuum to port A and check the vacuum.

        A00DPKDE01
        OK
        The vacuum is maintained at first. By gradually increasing the vacuum, air flows and the vacuum decreases after the vacuum reaches a specified level.