Were is the IAC valve located on a 2.0

I think mine is going out, the check engine light will come on and the car will get jumpy when im trying to stay at a consistent speed say 3rd gear at 3,000 rpm " manual ". When it does this ill come to say a red light and the car will want to stay at 2,000 rpm but will adjust if I rev engine slightly. Then in a day or so the C/E light will go off. Does this sound like a iac valve. Thank you for the help, Michael