EMISSION CONTROL SYSTEM ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT FUEL CUT RPM


    1. Start the engine.

    2. Warm up the engine.

    3. Increase the engine speed to approximately 3000 rpm.

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

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

      Note


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

      • Air suction caused by disconnections, looseness or cracks in any part of the air induction system between the throttle body with motor assembly and cylinder head sub-assembly will cause engine failure or engine malfunctions.

      If any defects are found, replace parts as necessary.

  3. INSPECT EVAPORATIVE EMISSION CONTROL SYSTEM


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Warm up the engine.

    4. Turn the GTS on.

    5. B003WI6

      Disconnect the No. 2 fuel vapor feed hose from the purge valve (purge VSV).

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


      Powertrain > Engine > Active Test
      Tester Display
      Activate the VSV for Evap Control

    7. Check that vacuum occurs at the purge valve (purge VSV) port.

    8. If vacuum does not occur, check the following items.


      • Purge valve (purge VSV)

      • Clogging in the No. 2 fuel vapor feed hose that connects the intake manifold and purge valve (purge VSV).

      • Voltage from the ECM PRG terminal.

        Click here

    9. Exit Active Test mode and reconnect the No. 2 fuel vapor feed hose to the purge valve (purge VSV).

    10. Enter the following menus: Powertrain / Engine / Data List / EVAP (Purge) VSV.


      Powertrain > Engine > Data List
      Tester Display
      EVAP (Purge) VSV

    11. Warm up the engine and drive the vehicle.

    12. Confirm that the purge valve (purge VSV) opens.

      If the purge valve (purge VSV) does not open, replace the purge valve (purge VSV), wire harness or ECM.