EMISSION CONTROL SYSTEM ON-VEHICLE INSPECTION


  1. INSPECT FUEL CUT RPM


    1. Increase the engine speed to at least 3500 rpm.

    2. A01EUNOE04
      Text in Illustration
      *1 Sound Scope

      Use a sound scope to check for injector operating sounds.

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

      Standard
      Item Specified Condition
      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 and 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 intelligent tester to the DLC3.

    2. A01EVJ8

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

    3. Start the engine.

    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 VSV port.

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

      Tech Tips


      • Purge VSV (for canister purge)

      • Clogging in the fuel vapor feed hose connecting the intake manifold and purge VSV

      • Voltage from the ECM PRG terminal Click here.

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

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

    9. Warm up the engine and drive the vehicle.

    10. Confirm that the purge VSV opens.

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