EMISSION CONTROL SYSTEM ON-VEHICLE INSPECTION


  1. INSPECT FUEL CUT OFF/RESTART RPM


    1. Start and warm up the engine.

    2. Increase the engine speed to at least 3000 rpm.

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

    4. When the accelerator pedal is released, check that injector operating sounds stop momentarily (at 2500 rpm) and then resume (at 1400 rpm).

      Standard
      Item Specified Condition
      Fuel cut off rpm 2500 rpm
      Fuel injection restart rpm 1400 rpm

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

  2. VISUALLY CHECK HOSES, CONNECTORS AND GASKETS


    1. A0160NG

      Check that there are no cracks, leaks or damage.

      Note


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

      • Disconnection, looseness or cracks in any part of the air induction system between the throttle body and cylinder head will allow vacuum leaks and cause an engine failure or engine malfunction.

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

  3. INSPECT EVAPORATIVE EMISSION CONTROL SYSTEM


    1. Start the engine.

    2. A015Z5R

      Disconnect the vacuum hose from the purge valve as shown in the illustration.

    3. Connect the intelligent tester to the DLC3.

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

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

    6. Exit Active Test mode and reconnect the vacuum 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 valve opens.

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