If your car works fine now that you cleaned the throttle and IAC, you may have fixed the problem.
However you can test the IAC valve and motor just to make sure:
Usually when you remove the motor and the idle air bypass solenoid (the nose in the video) is all the way out (meaning that the valve is completely closed), it means your engine has an air leak. Your car senses there's a lot of air coming in (thru the leak) and closes the IAC to prevent more air from getting sucked in thru the valve.
If your car works fine now though, it was just gunk in the throttle and you fixed the problem.
Saturday, October 9th, 2010 AT 9:56 AM