I just replaced my IACV with a brand new one, no vaccuum leaks to my knowledge. This is a B16a in a CRX. Could the idle screw have something to do with it? I noticed a couple weeks ago all the sudden my CEL came on and the car was throwing 5 codes. I checked under the hood and that screw was totally missing, so I replaced it with a new one and threadlocked it, and everything seemed fine except the same shitty idle. Could the adjustment of that screw be the culprit? What happens is the car will idle stable, but too high and then start bouncing. I don't know what else to check. Thanks.

 

try to check for vacume leaks carefully spray starting fluid around and if it bogs down you got a leak

 

it could be ur idle is too high and cause it to do that or ur map sensor not reading right, make sure ur map sensoer have a good vaccume and press all the way in

 

Make sure the screw is adjusted, and definately check your PCV valve, good luck.

 

^^^ that too

 

Check the fast idle valve,its located under the throttle body mounted to the im with 3 10mm bolts.There is a link on here that explains on how to fix them i will look it up for you.

 

Here is the link.https://honda-tech.com/zerothread?id=699787

 

Thanks for the tips. My ITR manifold eliminated the FITV. Is there any problem with that, like is the stock computer designed to work with the FITV even though it's not electrical? Also how do I adjust the screw correctly?

 

anyone?

 

that ftiv is only for cold start up.