[Coan]

Tonight I readjusted the TPS. It was at .52 volts when I started. I moved it around through it's range and then set it back at .50. Started the car and it gave me a P0120 code (TPS switch A circuit malfunction), probably from me adjusting it. I erased the code and went for a 20 minute drive. No more high idle and my 1-2 shift is noticeably softer (it's always been harsh).

I'm not yet convinced that the idle is fixed. I'll report back in a few days with an update, by then I'll have a pretty good idea if it has been resolved.