Pontiacattack
New Member
- Joined
- Aug 19, 2018
- Messages
- 13
Chasing down what seems like a gremlin in my WE4. My TPS keeps going failing on me. At this point, I've replaced it 3 times in 2 years. Even put a new Casper's plug on it when I found that the previous owner had wired the black to blue. My IAC is set around 35 and whenever I put a new TPS on, it stays at .42 with WOT around 4.5 and the car runs good for awhile. Then eventually it stops starting on first crank and the other day when I was on the highway it threw the CEL with my scanmaster G reading TPS too high and engine-braked until I got off on the next exit. I was able to get back going for a few days by adjusting the TPS but then it went back out of range while I was driving it.
I'm not really sure where to go from here though. Should I pull the throttle body and try cleaning it? Replace the IAC valve? What am I missing?
I'm not really sure where to go from here though. Should I pull the throttle body and try cleaning it? Replace the IAC valve? What am I missing?