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engine idleing funny

Old 19-Apr-2007, 09:00 PM
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engine idleing funny

hey guys i'm wondering if someone could possibly answer this question. I've got a 94 civic hatch 1.5, when i start it up it idles up and down for about 20 minutes, its driving me nuts. any suggestions , thanx
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Old 20-Apr-2007, 12:17 AM
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air in the cooling system
faulty idle air control valve (iacv)
vacuum leak
could be many things
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Old 20-Apr-2007, 12:28 AM
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wow, im surprised no one has said


that's a shock!
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Old 20-Apr-2007, 12:28 AM
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Vacume leak.
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Old 20-Apr-2007, 02:54 AM
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throttle position sensor
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Old 20-Apr-2007, 06:42 PM
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i like how people just name out parts.. lol

MAP sensor.

no im kidding.. unplug the iacv see if it keeps on surging with it unplugged. If it does.. check if theres suction from the FITV port.. check air bubbles like lenny said, etc.
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