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Rpm Surge from 1200-3000

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Old 11-09-2003, 01:53 PM
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Default Rpm Surge from 1200-3000

I have a 94 Acura Integra Gsr, and lately it has been surgin from 1000-1500 rpm in the morning when its cold, now as of last night, it idls at 1200 and surges up and down from 1200-3000 when im driving under 2000 rpm and when sitting at a light, or just in netural.

Help!!
What can it be and what are the $$ estimates, where on the peninsula should i take it?
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Old 11-09-2003, 02:27 PM
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any cel on?
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Old 11-09-2003, 04:53 PM
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I.A.C VALVE (idle air control valve)... do it yourself, its not very hard.........
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Old 11-09-2003, 05:14 PM
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sounds like iac valve, pull it off and spray it out with carb cleaner, or you might have a vacuum leak. imo IAC valve
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Old 11-09-2003, 07:58 PM
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thanks i'll look tomorrow morn
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Old 11-09-2003, 07:59 PM
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any other suggestions, ok i got the iac valve off and have sprayd it down. should i soak it, leaving the plug out of the mixture or what.

Last edited by 94b18c1; 11-10-2003 at 01:52 PM.
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Old 11-10-2003, 12:52 PM
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could be a few things...but try the iac valve, egr valve, and pcv valve

also..whens the last time you changed/cleaned the air filter?
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Old 11-10-2003, 01:53 PM
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whats the egr valve?
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Old 11-10-2003, 02:31 PM
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Have you done anything with the idle adjustment screw or bypassed the coolant lines from the throttle body?

Do you have a Hondata?

Also if the throttle cable is too tight that can cause it.
A dirty sticking throttle plate can also give the same symtoms...
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Old 11-10-2003, 04:22 PM
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Originally posted by PWRVTEC


Also if the throttle cable is too tight that can cause it.
A dirty sticking throttle plate can also give the same symtoms...

i agree with this........
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