Hi there! I am new to this forum, I have been to 3 other forums and they are practically dead, so I guess i'll try here. =)
My engine originally had a blown head gasket. We hired a mechanic to fix it and now its back together and it runs great, my only concern is that the engine is idling between 2000 and 2500 rpms. I can't seem to get it to come down.
I have narrowed it down to these problems:
Oxygen sensors. (they have never been changed, I bought the car from a previous owner, the car has 200k+ miles on it)
IAC (has also never been changed)
Oxygen sensors are 50 bucks a piece, and I need two of them. An IAC is 65 bucks. Before I spend 200 bucks, it would be nice to know exactly what my problem is. Any help or suggestions for narrowing this down would be greatly appreciated, thanks! =)