Do a book leak test first if you can.

Then try unplugging the IAC motor then start the car and see what happens.

And last try using the idle speed adjustment mode and mess with the BISS to see what that does.

 

no leaks, if i unplug the iac motor the car idles even higher, i cant find the directions for sas mode on evo scan but that biss doesn't do much for the idle

 

What version evoscan you running?

If you got 2.7 its the actuators button on the right and you'll see it under there. Activate it then try adjusting the idle down.

 

ok i tried it and made no difference, also noticed the target idle is correct

 

Sounds to me that the throttle body needs removed, fully disassembled, and cleaned completely. You would be amazed at what a good cleaning will do.

+1 on the boost test. Chances are your throttle body seals are hosed and/or something else.

 

no leaks with the boost test

 

Has the car ever been tuned/flashed?

 

Have you tried a hard reset by unhooking the battery for 30 minutes?

What BOV are you running?

I'd like to see your rom if thats ok. Email it to me. its Project_skyline at live(dot)com

 

Faster way to do the "hard reset"

Disconnect the battery
Try to start the car (the draw sucks any current left in the car)
Reconnect the battery
DONE

Do it fast enough and you won't even lose your radio stations.

 

Good idea.

 

Were these normal readings? Any input?

 

Advanced Auto Parts Idle Air Control Motor

Is this the IACV?

*EDIT* NVM, I don't think it is.

 

Negative, the one on the Evo has 3 screws securing it to the throttle body, and has a round fat body.

 

contact russell at mitsubishiparts.net Thats where I got mine from. A little pricey but comparable to local dealerships and other online sources. Or look in the for sale ads here.

 

http://www.jscspeed.com/index.php?p=...le+air+control

http://www.autopartswarehouse.com/se...ontrol&submit=

Are these it?