EMISSION CONTROL SYSTEM ON-VEHICLE INSPECTION

PROCEDURE

  1. CHECK FUEL CUT RPM

    1. Start and warm up the engine.

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

    3. A196366C03

      *1

      Injector

      *a

      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.

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

      Standard

      Item

      Specified Condition

      Fuel injection restart rpm

      1200 rpm

  2. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS

    1. Visually check that the hoses, connections and gaskets do not have cracks, leaks or damage.

      Note:

      • Detachment or other problems with the engine oil dipstick, filler cap, 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 and cylinder head will cause an engine failure or engine malfunction.

      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. A195938

      Slide the clip and disconnect the fuel vapor feed hose from the purge valve (purge VSV).

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

      Powertrain > Engine and ECT > 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 fuel vapor feed hose that connects the intake air surge tank and purge valve (purge VSV)

      • Voltage from the ECM PRG terminal

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    9. Exit Active Test mode and reconnect the fuel vapor feed hose, and slide the clip to secure it.

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

      Powertrain > Engine and ECT > 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 result is not as specified, replace the purge valve (purge VSV), wire harness or ECM.