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MULTIPORT FUEL INJECTION (MPI) DIAGNOSIS MULTIPORT FUEL INJECTION (MPI) <3.8L ENGINE> 13A-584 STEP 3. Using diagnostic tool, check data list. . a. Item 13: Throttle Position Sensor (main). c. Item 11: Accelerator Pedal Position Sensor (main). d. Item 12: Accelerator Pedal Position Sensor (sub). (3) Turn the ignition switch to the "LOCK" (OFF) position. Q: Are they operating properly? YES : Go to Step 4. symptom is eliminated. STEP 4. Inspection of throttle body (throttle valve area) for Q: Is the throttle valve area dirty? YES : Refer to On-vehicle Service − Clean the throttle valve area NO : Check the following items, and repair, replace or clean the defective sections. a. Check the ignition coil and spark plugs. Then confirm that the malfunction symptom is eliminated. 00DB076A MB991910 DATA LINK CONNECTOR MB991824 MB991827 |