yo question for yall

robry · Post by **robry** » August 22, 2005

sfc's car:

okay the dude just moved and hes unable to get on the internet right now, still waiting for his cable to get installed. Anyhow, hes been having an ongoing issue with his 00 civic si, stock b16a2. Its surging at idle once hes at normal temp (180~F?) if hes sitting at a stop light, between 1500 and 2500 its surging badly. He got a CEL light and had the code pulled, and autozone said it was the IACV (idle air control valve ?). My main concern is if this is a common issue or if anyone knows anything to try and prove either way weither this is a concern or not. Let me know I'm sure he'll stop by the forums from work tomorrow.

munster · Post by **munster** » August 22, 2005

I would change it just because of the annoyance. They're not expensive...I don't think.

tommybanzai · Post by **tommybanzai** » August 22, 2005

could be a simple vaccum leak causing it too

munster · Post by **munster** » August 22, 2005

True. Tell him to check vacuum lines, but if that's not it...just pick up a new idle air.

tim_adams85 · Post by **tim_adams85** » August 23, 2005

Well, before picking up a new one, try cleaning the one that's on there with some brake cleaner. That's done the job for a bunch of friends of mine.

And do check the vaccuum lines for leaks. Good luck.

robry · Post by **robry** » August 23, 2005

thanks I'll let him know. he said its only doing it while its hot, if he starts it up after it cools off, it doesn't do it, so my guess is its just the idle air. Thanks guys.

Post by **JDMcd8** » August 23, 2005

tommybanzai wrote:could be a simple vaccum leak causing it too

I agree, would check that first..

Post by **BRYCE** » August 23, 2005

mine used to do that then i replaced the fast idle sensor i think it was called