Problems at Idle
I posted this in anoher forum as well. Looking for the solution.
On my '88GT (converted to mass air) I have a problem with the car's idle. Everything is normal for the most part. Idles great. Rev it and it comes back down at 1100 for a sec or two and then down to 800 or so.
The problem is this. At times the idle will come up on its own to about 2000 and hold, never coming back down. This sometimes occurs during driving the car as well. Very puzzling..It's not the throttle linkage or throttle body sticking. If I turn off the ignition and start the car again...everything is normal. This is quite annoying! What should I do?
I am the original owner and have never had this problem before.