EMISSION CONTROL SYSTEM ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:


  • When working near the engine room while the engine has started or the power source mode is ignition switch to ON (IG), do not touch the fan and generator V belt or rotating components such as the fan, etc.

  • Touching the fan and generator V belt or rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.

A005QA2

PROCEDURE


  1. INSPECT FUEL CUT OPERATION

    CAUTION:


    • When working near the engine room while the engine has started or the power source mode is ignition switch to ON (IG), do not touch the fan and generator V belt or rotating components such as the fan, etc.

    • Touching the fan and generator V belt or rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.

    A005QA2

    1. Start the engine.

    2. Warm up the engine.

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

    4. A001VDPC01
      *1 Fuel Injector Assembly
      *a Sound Scope

      Using a sound scope, check for injector operating sounds.

    5. 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 cut off engine speed 2700 rpm or higher
      Fuel injection restart engine speed 1200 rpm

  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 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 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

    CAUTION:


    • When working near the engine room while the engine has started or the power source mode is ignition switch to ON (IG), do not touch the fan and generator V belt or rotating components such as the fan, etc.

    • Touching the fan and generator V belt or rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.

    A005QA2

    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Warm up the engine.

    4. Turn the GTS on.

    5. A001U5B

      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)

      • Clogs in the 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 connect 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.