North American Turbocoupe Organization

Full Version: High idle sometimes
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
after driving for awhile my car will sometimes idle up to 1500-2000 and then go back to normal. It doesnt do this all the time. I know its usually the TPS or IAC how do i determine which one is the problem for sure ??
May not be either, but clean the IAC and check/reset the TPS. Have you checked codes and air leaks? (Yeah I know you have practically rebuilt that thing, but I got to ask) Big Grin

Personally, I don't thing the test will catch every bad TPS. I had one that tested good, but when I replaced it my problem went away
LOL pete.. i cleaned the IAC when i installed the HG, no vac leaks or air leaks. I was just wondering whats more than likely bad the TPS or IAC trying not to waste money..
If I had to guess, I'd go for the TPS
Use a meter(preferably analog) to verify TPS voltage operation through it's full travel... If it's OK, repl the IAC...