idle speed

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08-05-2013, 06:13 AM

Chris Fisher

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idle speed

My 1998 civic has been standing for about a year , now when it comes up to temperature the idle speed varies from about 1,000 to 2,000 rpm any ideas please

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08-05-2013, 06:18 AM

jbpnoman

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Re: idle speed

Is it pulsing (gradual increase, sudden drop), or hunting (gradual increase and decrease)? Is the CEL on?

Remove, clean, and re-install your IACV, and check for vacuum leaks.

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08-05-2013, 07:07 PM

ElswickB22

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Re: idle speed

Yep, clean IACV check all the lines that run from the engine to IACV. Also check the throttle body gasket for leaks. Thats where mine was when I had this problem.