Emission Control System (W/O Secondary Air Injection System) On-Vehicle Inspection


  1. CHECK PURGE VSV

  2. INSPECT FUEL CUT-OFF RPM

  3. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS

  4. CHECK HOSES AND CONNECTORS

  5. CHECK FUEL TANK ASSEMBLY

Emission Control System (W/O Secondary Air Injection System) -- On-Vehicle Inspection



1. CHECK PURGE VSV

  1. Connect the intelligent tester to the DLC3.

  1. Remove the V-bank cover (LandCruiser RM00000456D014X_01_0004.html).



    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Disconnect the hose (connected to the canister) from the purge VSV.

  1. Start the engine and turn the tester main switch on.

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

    Standard:
    Tester Operation
    		Specified Condition
    EVAP VSV: OFF
    		Purge VSV has no suction
    EVAP VSV: ON
    		Purge VSV has suction

  1. Connect the hose (connected to the canister) to the purge VSV.

  1. Install the V-bank cover (LandCruiser RM00000456B015X_01_0008.html).



2. INSPECT FUEL CUT-OFF RPM

  1. Start and warm up the engine.

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

  1. Use a sound scope to check for injector operation noise.

  1. Check that when the accelerator pedal is released, injector operation noise stops momentarily and then resumes.
    If the result is not as specified, check the injector, wiring and ECM.



3. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS

  1. Check that there are no cracks, leaks or damage.

    NOTICE:
    1. Detachment or other problems with the engine oil dipstick, filler cap, PCV hose and other components may cause the engine to run improperly.
    2. Air suction caused by disconnections, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will cause engine failure or engine malfunctions.
    If the result is not as specified, replace parts as necessary.


4. CHECK HOSES 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.