Mysterious IACV Issue

**rhysjAus** · 26-07-2012 05:16 PM

Hey guys, Im just chasing some help regarding an IACV/EACV issue on my 95 Gsi

So here's the lowdown, couple months ago it started to intermittently idle strangely while driving, anything above 1500Rpm would cause the car to bounce a few hundred RPM and drive really badly. Initially pulling over and turning the engine off then restarting solved the problem for a few days.

After a while it got to the point where it wasn't driveable. So took it to a mechanic who charged around 350 for a second hand part and labour. Picked it up and it drove fine for a few days, then hey presto, back to the same problem.

Was then told by same mechanic that second hand parts (particularly IACVs) sometimes dont work and should look at a brand new one to be ordered. He then quoted me 800 for the part and labor so promptly told him to get stuffed.

Got a new part directly from Honda and fitted it the other day car ran beautifully. But today on the way to work the same problem. Brought it home, cleaned IACV, cleaned FITV checked all hoses and connections which are good. Bled cooling system. Still got the same issue. Checked error codes from ECU only one coming up was 14 (IACV). Im stumped. Any help would be greatly appreciated.

My description wasn't the best so heres a video of startup.
http://www.youtube.com/watch?v=x3xe-...ature=youtu.be

Thanks Guys.

**dorikin** · 26-07-2012 05:57 PM

Does the Check Engine Light come on with all 3 IACV's you have?

If so, might have a wiring problem

**rhysjAus** · 26-07-2012 05:59 PM

Yeah it does.

Okay was hoping it didnt come to that :P What would be the best way to go about resolving a wiring issue?

**dorikin** · 26-07-2012 06:01 PM

Follow this guide step by step, particularly Continuity Test

http://www.ozhonda.com/forum/showthr...s-Code-14-EACV

**rhysjAus** · 26-07-2012 06:05 PM

Alright thanks man ill get stuck into it

**viinnh** · 01-08-2012 07:11 PM

had this problem it idled around there, it was because of a leak on the intake manifold gasket. check if you can hear air leaking or something . ALSO check your vacumm lines

**rhysjAus** · 06-08-2012 07:12 PM

alright just had it in at the mechanic again who found oil was leaking into the spark plug wells, all rocker gaskets replaced and engine was cleaned, picked it up friday running fine until today. exact same problem. Now throwing a MAP sensor CEL (code 3) as well as an IACV CEL (code 14). Same idle problem as mentioned to start with.

Ive got no idea what it could be. Any help would be great. Sick of not being able to drive my teg