Originally Posted by DrewN209 (Post 849037)

Throttle body has been cleaned and I'd love some advice on the idle control valve ... Is there one on the 4.4i ? I searched on if leaning would help and how to and it all related to the 3.0 and I couldn't seem to find where it is on realoem.com

Originally Posted by DrewN209 (Post 848972)

I ran a tank full of techron followed by a tank of seafoam my last 2 tanks... and in total I've probably ran about 5 or 6 cleaners through... I'm not against throwing another one in there if it fixed yours. You had the same problem where the ac would fix the rough idle as well ? Am I crazy thinking the idle at 525 is just too low ? Thanks.

Originally Posted by TwinTurboGTR (Post 848955)

Very good Drew,
Do not start chasing the problem because it won't solve anything. There are a lot of people on here; and I have done it myself, told the forum here, left and said "Damn, now I'm chasing a damn problem by throwing parts at it!"

Anyways, as far as the rough idle, it sounds like it has to do with the X breathing or emmissions. I would check to see the throttle body and look at that butterfly plate. If it is covered in carbon, that plate may have a hard time properly opening and closing. Carbon may be covering the plate, blocking air flow when the motor is in idle. If it is covered, hit it with throttle cleaner. I've done it on my X 4 times and no problems. You might trigger a CEL but it goes away after a few hours of driving. And emission wise, check the ERG valve a check to see if the valve is sticking, de to carbon build up. Anyone want to concur?

At least these things don't cost any money, well besides the $6 on the cleaner, and $9 for a 6 pack of bud???

Originally Posted by DrewN209 (Post 849389)

Thanks... Yea my idle is barely over 500. When I turn the AC on its jumps to about 650 or so and gets a lot smoother. Can you manually raise the idle ? Possibly an Indy or dealer could just override and turn the idle up a little ?

Originally Posted by killcrap (Post 849419)

the throttle body has no effect on this vehicle when it comes to idling, it is solely used for start up, failsafe and to maintain a 50mbar vaccum for emissions.



the idle on the ME9 engine management can be increased by 50rpms, a service function is available to do so

Originally Posted by DrewN209 (Post 849583)

Thanks... by 'a service function is available' i'm assumming this is something that only a dealer can accommodate ?

I hope they will help me out, I have a feeling I'm going to get the no codes, no problems rant...