My 92 civic (stockd16) is surging from 1k - 2.5k rpms at idle. Cooling is not the issue so I figure its the IACV. I have not replaced one nor do i know where this is. Is it attatched to the firewall? How much do these parts typically cost? Any help would be appreciated, i know it is not too big a deal, but it needs to get fixed...

 

they are like 130 bucks brand new at honda. it is on the back of your intake manifold with several coolant lines and a plug going to it. 3 10mm bolts hold it on.

 

right on. any sure way to know it's broke? or is the crazy idle fact enough?

 

any check engine lights?

 

none

 

try cleaning it.

 

really? i'll try tomorrow, i'd like to see an improvement..

 

what should i use to clean it?

 

Well, on my D15 in my 95 civic there are only 2 lines going to it, and 2 bolts holding it on, I think it would be the same for the d16, the bolts are diaganol from each other. Try cleaning it out, as soon as u take it off u should know just by looking at it if it's dirty or not, but u shouldn't need to replace it.

 

i hope not, i can think of alot of things i could buy with 100 bucks other than a damn iacv,lol.