Tune-up and Engine Performance Checks: Testing and Inspection

ENGINE TUNE-UP [MZI-3.7]

Note
^ If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not indicate a malfunction.

Engine Tune-up Preparation
1. Verify that the selector lever is in the P position.





2. Connect the M-MDS to the DLC-2.
3. Turn off the electrical loads.
4. Verify that no DTCs are available.
5. Warm up the engine as follows.
1) Start the engine.
2) Perform no-load racing at 2,500-3,000 rpm for 3 min. (ECT is approx. 80°C (176°F) or more)
3) Release the accelerator pedal.
4) Wait until the cooling fans stop.