Variable Intake Air Control Operation Inspection

1. Start the engine.
2. Inspect the rod operation under the following condition:

Rod operation 

• 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 P0661:00 or P0662:00 is not displayed.
   • If DTC P0661:00 or P0662:00 is shown, perform DTC inspection. (See DTC P0661:00 .) (See DTC P0662:00 .)
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