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

 

Search! :-)

 

adjust your idle screw?

 

just that would mess it up on the first key cycle. because it is fine after i restart the car

 

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

 

thanks for your help i will try this stuff and let you know. I have a 99 civic si by the way

 

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......

 

I tried that and it does not work. I have to restart the car. I think it has to be a computer prob

 

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