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

high idle problem

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Old 12-07-2004, 01:19 PM
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Default high idle problem

I have a nasty high idle. It happens when car is cold and on first key cycle. The idle stays high even when car is warm. I have to shut the car off and restart after it is warm for it to idle good. Please help
Old 12-07-2004, 01:21 PM
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Default Re: high idle problem (goltz81)

Search! :-)
Old 12-07-2004, 01:26 PM
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Default Re: high idle problem (goltz81)

adjust your idle screw?
Old 12-07-2004, 01:31 PM
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Default Re: high idle problem (JDM_lover03)

just that would mess it up on the first key cycle. because it is fine after i restart the car
Old 12-07-2004, 01:45 PM
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Default Re: high idle problem (goltz81)

well heres a list of possible causes for erratic idle:
1.) vacuum leak
2.) leaking EGR valve
3.) air filter clogged
4.) leaking head gasket
5.) timing belt and/or pulleys worn
6.) camshaft lobes worn

dunno if this helps at all but ya......hope it does
Old 12-08-2004, 11:30 AM
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Default Re: high idle problem (JDM_lover03)

thanks for your help i will try this stuff and let you know. I have a 99 civic si by the way
Old 12-08-2004, 11:35 AM
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Default Re: high idle problem (goltz81)

when I start mine, it idles high, 1500 or so....after it's warm, I tap the gas and the idle returns to normal....after just a little bit if you tap the gas, you'll notice the idle comes down a lil bit, but it won't come all the way down until the engine is warm....I think this is normal, it's done this on all of my previous rides......
Old 12-11-2004, 05:20 PM
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Default Re: high idle problem (Pioneer162)

I tried that and it does not work. I have to restart the car. I think it has to be a computer prob
Old 12-11-2004, 05:25 PM
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when i start mine it idles @ 1500 too and vtec does not work...... once it gets a little warm vtec kicks in and it idles fine
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