My engine is revin it self while the engine is cold. Its revin at 1800 and going down and back up slightly. Completely stops when the engine is warm.

I noticed this problem after i had the rebuild, maybe something wasnt hooked back up the right way. I see a electrical clip thas not hooked coming from the harness that is connected to the IACV. Dont see where it goes, dont see it in haynes neither.

 

you see a plug thats not hooked up thats connected to the iacv??? hrmm... if you don't have any cel's, i'd say take apart the iacv (the end cap), twist the inside piece all the way in real tight, put it back together, problem should be fixed

and i guess you mean another iacv-style plug near the iacv plug on the harness... probably to the hvac or p/s pressure switch... nothin important. everybody either has that plug hangin there or they cut it off, lol.... BE VERY CAREFUL AND KNOW 100% WHAT IT IS BEFORE DOING ANYTHING

 

just search for cleaning iacv and fitv one or both of those are usually the issue

 

ive looked for the fitv it really seems like i dont have one, going to try the iacv tomorrow. Anything these guys could screwed up puttin it back in? Been doing this ever since i got it, never did it before hand

 

what engine do you have?

 

temperature sensor... behind the Intake mani

 

wha about the temp sensor?, and its an lsvtec

 

wut intake manifold are u using?

 

i always assumed stock, bought the car wit the ls swap already. Looks stock to.

 

is it a gsr IM, b16 IM, skunk 2 IM? that helps

 

b16

 

ur IACV should be behind ur IM or under the TB...find the thread on cleaning the IACV and clean it and see if that fixes the problem..also low coolant can cause idle fluctuating

 

is there coollit in it some times when it is low they will have a bad idle

 

yea im going to try cleanin the iacv. Too dark now. Yea theres plenty of coolant in there. Going to give that a go. Thanks for the help guys, anything else suggest to try if this fails?