The engine of my 93' Chevy pick-up idles high. It also shifts hard. It started a month ago a couple of times, then ran fine for a while. It has started back up again. I get a code of 22. I've replaced the TPS and Idle Air Control valve. Didn't help. Any ideas?
have the same problem?
Saturday, July 4th, 2009 AT 3:05 PM