maaliish
04-09-2003, 07:59 AM
while I'm in that area. Most importantly I have slightly rough idle (jumps from 640-680 on the climate contol screen) and sometimes my RMPs drop almost to stall when I engage the clutch while taking it out of the gear. It has only stalled on me twise, but I thought that I should clean something in the TB or MAF while I'm there anyhow. What can you sugest? I have a cone filter conversion so getting to that MAF whouldn't be too complicated.
Thanks,
PK.
Mr.D-'97 A4q 12v
04-09-2003, 08:12 AM
<ul><li><a href="http://www.kris-hansen.com/audi/icv.htm">Link to FAQ</a></li></ul>
Mr.D-'97 A4q 12v
04-09-2003, 08:18 AM
Follow the link in my below post for more info.<ul><li><a href="http://www.hosetechniques.com">http://www.hosetechniques.com</a</li></ul>
moribundman
04-09-2003, 09:00 AM
The MAF looked only a bit dirty, but idling improved after cleaning it. The ICV, on the other hand, was totally dirty, and cleaning it made a HUGE difference. I've experienced neither dipping nor stalling since.
Removing the ICV turned out to be a bit tricky - small hands would have helped.
Mr.D-'97 A4q 12v
04-09-2003, 10:24 AM
as the FAQ mentions that needs to be removed. I used two threaded rods left over from another project to reach down in there and squeeze the clip to pull the connector off. It is kinda tight in there.
moribundman
04-09-2003, 11:39 AM
The ICV is connected to the TB with two nuts. It's kind of hard to not drop the nuts. I suggest you hold the tip of a magnetic pickup tool to the nut right before it comes off the bolt. That way you can catch the nut before it falls God-knows-where. If the nut ends up in the belly pan, then you may be able to get the nut out by banging for 10 minutes or so on the belly pan...
maaliish
04-09-2003, 01:21 PM
http://www.audiworld.com/tech/int5.shtml<ul><li><a href="http://www.audiworld.com/tech/int5.shtml">http://www.audiworld.com/tech/int5.shtml</a></li></ul>
moribundman
04-09-2003, 01:55 PM
I tried it, and it worked. I can't believe I didn't know about that feature. Thanks for the hint!
AudiMick
04-09-2003, 04:49 PM
There is a brass fitting on a vacuum port on the TB that has a vacuum hose that goes to the plenum. On my car it was plugged solid with carbon.Check your EGR valve is fully closing as if it's not this will affect the idle.