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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-23 Starting Cranks, won't start 5 Fires up and dies 6 Hard starting 7 Idling stability Unstable idle (rough idle, hunting) 8 Idle speed is high (improper idle speed) 9 Idle speed is low (improper idle speed) 10 Idling stability When the engine is cold, it stalls at idle (die out) 11 When the engine is hot, it stalls at idle (die out) 12 The engine stalls when accelerating (pass out) 13 The engine stalls when decelerating 14 Driving Hesitation, sag or stumble 15 Acceleration shock 16 Deceleration shock 17 Poor acceleration 18 Surge 19 Knocking 20 Dieseling 21 Too high CO and HC concentration when idling 22 IM240 test Transient, mass emission tailpipe test failure 23 Purge flow test of the evaporative emission canister 24 Pressure test of the evaporative system failure 25 Generator output voltage is low (approximately 12.3 volts) 26 Improper engine idle speed when the A/C is on (A/C switch 2 signal) 27 Fans (radiator fan, A/C condenser fan) are inoperative 28 Power supply system and ignition switch-IG system 29 Fuel pump system 30 Ignition switch − ST system <M/T> 31 Ignition switch-ST system and park/neutral position switch system 32 Ignition circuit system 33 A/C system 34 SYMPTOMS INSPECTION REFERENCE PAGE |