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Old 02-05-2009, 02:24 PM   #4
j cAT
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Re: Idle high, accelerates on it's own.

Quote:
Originally Posted by thomasstudios
I read the MAF sensor and the wires and it checks good. I even replaced with a known good MAF. Same thing. Still misfire on #4 cylinder, idle does not go down to 700. In fact, it rises to 1200 once warm. Could this be a timing issue with the distributor, o2 sensor maybe? I'm stuck.
did I say MAF ??????? air ducting I thought I mentioned must not be any leaks .....to throttle body.....

you also could have an intake manifold leak or bad PCV/hoses etc...anything bypassing the MAF causing the engine to get too much air ..
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