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

Few seconds of rough idling when started

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Old 05-25-2013, 01:45 PM
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Default Few seconds of rough idling when started

96 civic with a B16A2 swap. When I start my car after it has sat for more than like a half an hour, it idles really rough and loud. After a few seconds it goes back to normal. Anyone have any ideas? Coolant leaking into the cylinders due to a bad HG is the only thing I can think of.
Old 05-25-2013, 01:51 PM
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Default Re: Few seconds of rough idling when started

um where did you get that idea....clean your iacv or fitv even since you say it's only on start up
Old 05-25-2013, 02:05 PM
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Default Re: Few seconds of rough idling when started

well I was loosing coolant and figured that was where it was going but I recently found the leak so thats not it. Ill clean the iacv and see if that works.
Old 05-25-2013, 04:58 PM
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Default Re: Few seconds of rough idling when started

Just got finished cleaning the IACV and it runs great now. Replaced the spark plugs while I was out there and realized whoever did the swap had them at a super high gap like 50+ or something crazy. Idk which of two fixed the problem but it seems fine for now. Just for future reference I know the Coolant lines running to the IACV are only need if you live in a cold weather area, anyone know how cold?
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