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high idle

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Old 12-19-10, 10:28 PM
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CA high idle

okay guys. so right now as my fc sits it's idling high between 1500 - 2000 rpm. runs and drives fine. anyone help? thanks.
Old 12-20-10, 01:00 AM
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Thermowax piston not retracting, or throttle stop adjusted too high.
Old 12-20-10, 03:32 AM
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Would those be easy to fix or should I take it to a shop?
Old 12-20-10, 01:33 PM
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I don't know what you consider easy, but in my book...

Replacing thermowax: fairly easy
Adjusting throttle stop: very easy
Old 12-20-10, 05:24 PM
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yeah my car was like this when i bought it.. i adjusted the throttle stop so when its cold it idles about 800rpms then once warm like 1000. very easy to do.
Old 12-20-10, 09:31 PM
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I'm still pretty new to this type of ride so it would really help if you could explain what to do. Sorry.
Old 12-20-10, 09:37 PM
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ok im assumeing its a turbo2.... the screw is located behind/underneath the top mount IC. you can get to it with a long skinny flathead screwdriver right on the throttle arm.. its small. counter clockwise will slow the idle down, clockwise will increase. you can adjust it while the car is running, just be carefull of loose clothing etc around your belts and such....
Old 12-20-10, 11:04 PM
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Build yourself a test pipe out of pvc to make adjusting the stop screw or thermowax easier. Having the car running while setting them makes it that much easier. And adjust your TPS while you're in there.
Old 12-20-10, 11:35 PM
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thanks guys. i really appreciate it. my first time dealing with this ride. and yes, it is a turbo 2. my buddy helped me do a full rhd turbo conversion since i lived in japan and am used to rhd.
Old 12-20-10, 11:58 PM
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A little goes a long way with the throttle stop. IIRC about 1/4 turn adjusted my idle speed by 300 RPM.
Old 12-21-10, 09:55 AM
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^^ He's right. Start small, very small. And be sure to actuate the throttle cable a few times in between adjustments. Helps make sure everything settles correctly after you move the screw. Sometimes all the gunk and aged springs might not respond immediately to the adjustment and it can be confusing trying to figure out why the throttle is way high or way low.
Old 12-21-10, 10:19 AM
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okay. thanks. if it doesn't work i'll ask you guys what else i should do. i'm pretty sure it should.
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