Variable Tumble Control Operation Inspection
- Connect the M-MDS to the DLC-2.
- Access the ECT PID. (See ON-BOARD DIAGNOSTIC TEST [MZR 2.5] .)
- Verify that ECT PID is less than 63°C {145°F} .
- Start the engine.
- Inspect rod operation under the following conditions: Rod operation
Engine speed 3, 750 RPM Below Above Shutter valve actuator Operate Not operate - If the rod operation is not specified, inspect as follows:
- Verify that DTC P2009:00 or P2010:00 is not displayed.
- If DTC No. P2009:00 or P2010:00 are shown, perform the DTC inspection. (See DTC P2009:00 [MZR 2.5] .) (See DTC P2010:00 [MZR 2.5] .)
- 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