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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-53 SYMPTOM CHART M1131151503134 CAUTION During diagnosis, a DTC associated with other systems may be set when the ignition switch is turned CAUTION Disconnecting the battery cables or removing the combination meter will erase the learned value of . TROUBLE SYMPTOMS INSPECTION REFERENCE PAGE Communication Communication with ECM only is not possible 1 Malfunction The Malfunction Indicator Lamp (SERVICE 2 The Malfunction Indicator Lamp (SERVICE 3 Starting Cranks, won't start 4 Starts up and dies 5 Hard starting 6 Idling stability Unstable idle (rough idle, hunting) 7 Idle speed is high (improper idle speed) 8 Idle speed is low (improper idle speed) 9 Idling stability When the engine is cold, it stalls at idle (die out) 10 When the engine is hot, it stalls at idle (die out) 11 The engine stalls when accelerating (pass out) 12 The engine stalls when decelerating 13 Driving Hesitation, sag, Stumble, Poor acceleration or 14 Acceleration shock 15 Knocking 16 Too high CO and HC concentration when idling 17 |