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Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

rough cold idle and surging rpms.

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Old 03-13-2008, 11:19 AM
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Default rough cold idle and surging rpms.

I'm sure this has been covered or another post but I can't seem to find a solution.
I have a 97 ex(CDN SI). On cold starts she idles rough a little bit then the rpms kick up to almost 2k.
Also after driving a little bit when I'm at a dead stop the rpms surge a bitup about 5pms then back down and it does this 2-3 times.

I've already replaced the iacv, cleaned the map sensor, cts was replaced, new plugs, wires and rotor cap and button and adjusted the valves (I'm sure this ahd nothing to do with the rough idle but it had to be done none the less).

Old 03-13-2008, 11:22 AM
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Default Re: rough cold idle and surging rpms. (bp2007)

Vacuum leak?
Old 03-13-2008, 11:27 AM
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no vacuum leaks
Old 03-13-2008, 11:34 AM
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Default Re: (bp2007)

You may want to check whether the throttle cable is out of adjustment and whether the throttle body is dirty.
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