Variable Intake-air Control Operation Inspection

Rod operation (LF) 

Rod operation (L3) 

• If the rod operation is not as specified, inspect as follows:

1. Stop the engine.
2. Connect the M-MDS to the DLC-2.
3. Verify that DTC P0661 or P0662 is not displayed.
   • If DTC P0661 or P0662 is shown, perform DTC inspection.

     (See DTC TABLE .)

4. Inspect the variable intake-air solenoid valve.

   (See VARIABLE INTAKE AIR SOLENOID VALVE INSPECTION .)

   • If the variable intake-air solenoid valve is not normal, replace the variable intake-air solenoid valve.

     (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION .)

   • If the variable intake-air solenoid valve is normal, inspect the following:
     • Vacuum hose and vacuum chamber for looseness or damage
     • Shutter valve actuator

       (See VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR INSPECTION .)

     • Shutter valve stuck open or closed