Variable Tumble Control Operation Inspection

1. Connect the M-MDS to the DLC-2.
2. Access the PCM PID ECT. (See ON-BOARD DIAGNOSTIC TEST .)
3. Verify that ECT PID is between 60 °C {140 °F} and 67 °C {153 °F}. 
4. Start the engine.
5. Inspect rod operation under the following conditions:

Rod operation 

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

1. Verify that DTC P2009:00 or P2010:00 is not displayed. (See ON-BOARD DIAGNOSTIC TEST .)
   • If DTC P2009:00 or P2010:00 are shown, perform DTC inspection. (See DTC P2009:00 .) (See DTC P2010:00 .)
2. Inspect the variable tumble solenoid valve. (See VARIABLE TUMBLE SOLENOID VALVE INSPECTION .)

• If the variable tumble solenoid valve is not normal, replace the variable tumble solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
• If the variable tumble solenoid valve is normal, inspect the following:

• Vacuum hose and vacuum chamber for looseness or damage
• Shutter valve actuator (See VARIABLE TUMBLE SHUTTER VALVE ACTUATOR INSPECTION .)
• Shutter valve stuck open or closed