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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-375 STEP 5. Checking by operating the accelerator pedal Q: Does the engine stall right after the accelerator pedal is released? NO : Go to Step 6. STEP 6. Engine stall reproduction test. Q: Is it easy to reproduce the engine stall? YES : Go to Step 7. wiggling the circuit harness and connectors. a. Crankshaft position sensor signal. c. Injector drive signal. d. Primary and secondary ignition signal. f. PCM or ECM power supply voltage. Repair or replace. Then confirm that the malfunction symptom is eliminated. STEP 7. Using scan tool MB991502, check data list. CAUTION To prevent damage to scan tool MB991502, always turn the Reference Table ( a. Item 13: Intake Air Temperature Sensor. c. Item 21: Engine Coolant Temperature Sensor. d. Item 59: Heated Oxygen Sensor (rear) f. Item 27: Power Steering Pressure Switch. g. Item 28: A/C Switch. (4) Turn the ignition switch to the "LOCK" (OFF) position. Q: Are they operating properly? YES : Go to Step 8. symptom is eliminated. AKX01177 16 PIN MB991502 AB |