Just incase anyone wanted a new one.

http://www.amazon.com/MD628318-AC571...4072124&sr=1-2

Not OEM, but works.

I had to get another one for my Evo, seems to stall coming to a stop now.

This will be my 3rd so every 100K is fine for me, LOL

 

http://www.ebay.com/itm/2006-MITSUBI...7ba02c&vxp=mtr

hi, will this evo 9 idle control valve fit in my evo 6??

 

Does your TB look like this?



This one here is an evo 8/9 :



Maybe someone with a keen eye can tell you if the screw holes match.

 

I know this thread is a little long in the tooth but thought I'd shime in with my 2¢.. Not sure if this is same as Mit but it's 12.95 shipped...BUT..I went through 2 cheap ones in under 10K mi....$5 junk yard one has been on for 2 years and about 20K miles.. http://www.ebay.com/itm/NEW-IDLE-AIR...9Uc0cY&vxp=mtr

 

I don't know if that is the correct one, I bought the one off of amazon because I am having the same issue. It gets here Friday.

 

randomevo, et al...I'm going to say it's your MAP sensor....

Identical problems for me, sudden onset of symptoms, car shutting off when idling, pulling into driveways etc., even on the highways when foot off the gas, etc, etc...no codes, running like crap, can't get it started unless foot on the gas/floor, flooded symptoms, etc, etc. Checked everything you've already checked, chasing a ghost it seemed like, until...

I took off the MAP to inspect it, not much to see other than testing it. But before I went that route, the o-ring seemed to be a bit brittle and loose, so went to Ace Hardware and picked up a couple, one the right size and one a gauge larger. Well, if you haven't already anticipated, I tried the larger gauge and ended up busting one of the mounting tabs off. Now I had to spend the $90 or so whether it was faulty or not!

Solution:
After replacing the sensor, the car went back to normal. I hope this solves the issue for you as well!

 

This sounds like IAC to me. They usually don't just quit, they suffer a lingering death. But if the car bogs while driving at steady speed I'd suspect the O2 sensor.

 

Car bogging at steady speed is also symptomatic of a failing MAP sensor. It's really tough to pinpoint these driveability issues sometimes that I have resorted to keeping extra sensors/IACV on hand just in case.