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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-357 STEP 3. Using scan tool MB991502, check data list. CAUTION To prevent damage to scan tool MB991502, always turn the Reference Table( ). a. Item 14: Throttle Position Sensor. (4) Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the sensor operating properly? YES : Refer to, Clean the throttle valve area( NO : Repair or replace. Then confirm that the malfunction symptom is eliminated. INSPECTION PROCEDURE 18: Poor acceleration. COMMENT • Defective ignition system, abnormal air/fuel ratio, TROUBLESHOOTING HINTS (The most likely • Malfunction of the ignition system. • Malfunction of air/fuel ratio control system. • Malfunction of the fuel supply system. • Poor compression pressure. • Clogged exhaust system. DIAGNOSIS Required Special Tool: STEP 1. Using scan tool MB991502, read the diagnostic CAUTION To prevent damage to scan tool MB991502, always turn the Q: Is the DTC is output? YES : Refer to, Diagnostic Trouble Code Chart( ). NO : Go to Step 2. AC003081 AB 16 PIN MB991502 AC003081 AB 16 PIN MB991502 |