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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-29 . PROBLEM SYMPTOMS TABLE (FOR YOUR INFORMATION) Ignition switch-ST system <M/T> 31 Ignition switch-ST system and transmission range switch system <A/T> 32 Ignition circuit system 33 A/C system 34 SYMPTOMS INSPECTION REFERENCE ITEMS SYMPTOM Starting Won't start The starter is used to crank the engine, but there is no combustion Starts up and The engine starts, but then the engine soon stalls. Hard starting Engine starts after cranking a while. Idling stability Hunting Engine speed doesn't remain constant; changes at idle. Rough idle Usually, a judgement can be based upon the movement of the Incorrect idle The engine doesn't idle at the usual correct speed. Engine stall (die The engine stalls when the foot is taken from the accelerator pedal, Engine stall The engine stalls when the accelerator pedal is depressed or while it is |