RPMS increase on its own!

89white50

Member
Nov 16, 2004
440
1
18
central MA
Well ill drive around and when it gets warm when i push the clutch in the rpms will rise. never to the same rpm, but usually between 1500-2600 rpms. it just stays at the certain rpm, seemingly whatever the computer choses. Whats going on here? two weekends ago i swapped in the new tranny speedo gear, could it be that sensor that goes on top of it sending something odd to the computer? i have no clue? doesnt seem to be the TB sticking either. weird.... please help!
 
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I used to have this problem when I first got my car.

Next time it does that, turn the car off and then restart the engine. If the hanging idle comes back down than your TPS is at fault. If that doesn't solve the problems, than dump the codes.