Variable Tumble Control Operation Inspection
VARIABLE TUMBLE CONTROL OPERATION INSPECTION1. Connect the WDS or equivalent to the DLC-2.
2. Access ECT PID.
3. Verify that ECT PID is below 61.9 °C {143.4 °F} (LF), below 63 °C {145 °F} (L3).
4. Start the engine.
5. Inspect rod operation under the following conditions:
- 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.
2. Inspect the variable tumble solenoid valve.
- If the variable tumble solenoid valve is not normal, replace the variable tumble solenoid valve.
(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF].) (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L3].)
- If the variable tumble solenoid valve is normal, inspect the following:
- Vacuum hose and vacuum chamber for looseness or damage
- Shutter valve actuator
- Shutter valve stuck open or closed