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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-987 STEP 2. Check the ignition timing. − Ignition Timing Check . Q: Is the ignition timing normal? YES : Go to Step 3. belt cover are in the correct position. Then confirm STEP 3. Using scan tool MB991958, check data list. CAUTION To prevent damage to scan tool MB991958, always turn the Reference Table a. Item 21: Engine Coolant Temperature Sensor. c. Item 25: Barometric pressure Sensor. d. Item 69: Right Bank Heated Oxygen Sensor (rear). f. Item 59: Left Bank Heated Oxygen Sensor (rear). g. Item 11: Left Bank Heated Oxygen Sensor (front). (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 4. symptom is eliminated. AK300810 AB MB991911 16-PIN MB991827 MB991824 |