EMISSION CONTROL SYSTEM ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT FUEL CUT RPM


    1. Start and warm up the engine.

    2. Increase the engine speed to approximately 3000 rpm.

    3. A01W0MPE07
      Text in Illustration
      *1 Sound Scope

      Use a sound scope to check for injector operating sounds.

    4. When the accelerator pedal is released, check that injector operating sounds stop momentarily and then resume.

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

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

  2. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS


    1. Inspect the hoses and gaskets for scratches, cracks or air/oil leaks from the connecting parts.

      Tech Tips

      If the hoses or gaskets are damaged or some of the connections are loose, they may cause an engine stall or malfunction.

  3. INSPECT EVAPORATIVE EMISSION CONTROL SYSTEM


    1. Connect the GTS to the DLC3.

    2. A01W2OS

      Disconnect the fuel vapor feed hose from the purge VSV.

    3. Start the engine.

    4. Turn the GTS on.

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

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

    7. If vacuum does not occur, check the following items:


      • Purge VSV (for canister purge)

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

      • Voltage from the ECM PRG terminal Click here

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

    9. Enter the following menus: Powertrain / Engine / Data List / EVAP Purge VSV.

    10. Warm up the engine and drive the vehicle.

    11. Confirm that the purge VSV opens.

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