I have a 93 civic lx 5 spd. I have replaced fuel pump, fuel filter, ignition coil, ingition module, and spark plugs. My car starts up and as long as i pump the gas it stays on but it wont stay on an idle. Im aware it could be the IACV. but i was driving and the rpms started fluctuating then my car chugged and stalled. Any pointers or ideas???

 

Clean your throttle body and IACV. I've had marginal success with seafoam spray down the throttle body, but in your case it sounds like you need to do some serious cleaning.

Did you replace the spark plug wires?

 

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