Variable Tumble Control Operation Inspection

1. Connect the M-MDS or equivalent to the DLC-2.
2. Access ECT PID.
3. Verify that ECT PID is below 60 °C {140 °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 No. P2004, P2006, P2009 or P2010 is not displayed.
     • If DTC No. P2004, P2006, P2009 or P2010 are shown, perform DTC inspection.

       (See DTC TABLE ).

  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