Variable Dynamic Effect Intake-Air (VDI) Operation Inspection
Variable Dynamic Effect Intake-air (VDI) Operation Inspection1. Connect the WDS or equivalent to the DLC-2.
2. Access the RPM PID.
3. Start the engine.
4. Inspect the rod operation under the mentioned condition:
- If the rod operation is not as specified, inspect as follows:
1. Stop the engine.
2. Connect the WDS or equivalent to the DLC-2.
3. Verify that DTC P0076 or P0077 is not displayed.
- If DTC P0076 or P0077 is shown, perform DTC inspection.
4. Inspect the VDI solenoid valve.
- If the VDI solenoid valve is not normal, replace the VDI solenoid valve.
- If the VDI solenoid valve is normal, inspect the following:
- Vacuum hose and vacuum chamber for looseness or damage
- Shutter valve actuator
(See VARIABLE DYNAMIC EFFECT INTAKE-AIR (VDI) ACTUATOR INSPECTION.)
- Shutter valve stuck open or closed