my car starts fine then cycles through normal idle and low idle then dies all together, no codes come up and have already replaced spark plugs, ignition coil, and air filter. the fuel pump, igniton wiring, and fuel filrter have been replaced recently and seem to be working fine. any help?
engine on 1993 Buick Roadmaster
by dancingbear in Dekalb, IL on March 22, 2010
ANSWER by Visitor on March 23, 2010
special tool to monitor idle air control motor and signal to motor from computer. U need mechanic
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at, speed runs well, just during idle, oilpressure drops, engine idles rough and stalls.
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