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. 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

      Fuel injector restart rpm

      1200 rpm

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

  2. VISUALLY INSPECT HOSE, 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 and 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. A205129

      Slide the clamp and disconnect the fuel vapor feed hose from the purge VSV.

    3. Start the engine.

    4. 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

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

      If vacuum does not occur, check the following items.

      • Purge VSV

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

      • Voltage at the ECM PRG terminal

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

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

      Powertrain > Engine and ECT > Data List

      Tester Display

      EVAP Purge VSV

    8. Warm up the engine and drive the vehicle.

    9. Confirm that the purge valve opens.

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

  4. CHECK LINE AND CONNECTORS

    1. Visually check for loose connections, sharp bends or damage.

  5. CHECK FUEL TANK ASSEMBLY

    1. Visually check for deformation, cracks or fuel leakage.