Honda civic 1999 idle issues

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Sep 27, 2012

fen

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Honda civic 1999 idle issues

1999 honda civic gli hatch model idle fluctuation in park. engine will rev up and down as if you are moving throttle up and down seems to work ok in drive what could be the issue any idea or theory's would be helpful

Sep 27, 2012

GolNat

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Re: Honda civic 1999 idle issues

Unplug the IAC valve located on the throttle body and see if it goes away. Carbon builds up inside of it so it might need to be cleaned.

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