Intake System On-Vehicle Inspection

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Uz-Fe Intake. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSPECT INTAKE AIR CONTROL FUNCTION

Intake System -- On-Vehicle Inspection



1. INSPECT INTAKE AIR CONTROL FUNCTION



Lexus Gs430, Gs300. Uzs190 Grs190.3Uz-Fe Intake.Intake System.Intake System On-Vehicle Inspection

  1. Remove the V-bank cover.



    Lexus Gs430, Gs300. Uzs190 Grs190.3Uz-Fe Intake.Intake System.Intake System On-Vehicle Inspection

  1. Connect the intelligent tester to the DLC3.

  1. Perform the Active Test, and then check that the actuator rod operates.

  1. Start the engine.

  1. Check that the VSV (for ACIS) is ON (seal) under these conditions.

    1. Depressing the accelerator pedal to a throttle valve opening angle of 60°.
    1. Racing the engine above 4,700 rpm.

  1. Check that the VSV (for ACIS) is OFF (vent) under these conditions.

    1. The engine is idling.
    1. Releasing the accelerator pedal while under the VSV (for ACIS) ON condition.
      If the result is not as specified, inspect the intake air control valve, vacuum tank and VSV (for ACIS) for normal operation. Replace malfunctioning parts as necessary.