Thread: Need help
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Old 06-19-2013, 12:44 PM
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The low idle sounds like the IAC to me but it doesn't rule out the plenum gasket. Remove the air cleaner and get a good look down inside of the TB (hold it all the way open) at the plenum plate to see if there's any oily residue indicative of it being bad. I've also run across a low idle issue from a bad upstream 02 sensor. Try unplugging the 02 sensor and check for any difference.
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