OptimistPrime
Buick Newbie
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I recently posted about how my 92 Lesabre was having trouble running right after extended driving. After 60+ miles it seems to have no acceleration, and the problem gets progressively worse until the car barely drives at all. Then once it cools down overnight, it's fine again. After replacing an O2 sensor, the car drove great... for a couple of weeks. Then today I drove about 120 miles, and on mile 110 it started doing the same thing again. Only this time, I know how to read the scan codes with a paperclip. Never had to do that before, but I'm stumped at this point. So here are the codes:
Code 21 Throttle position sensor error (signal high)
Code 22 Throttle position sensor error (signal low)
How can it be both high and low? If the TPS was messed up I would expect it to stall more. It hasn't stalled once so far on this issue.
Code 31 Gear Position Switch (PRNDL) error
That code can also apparently correspond to a wastegate error on turbo cars, but my car has no turbo. It also has no indicator needle on the trans shifter, it fell off. Maybe that's what the code is talking about? How do I fix this?
Code 58 Trans fluid temp sensor circuit error (low voltage) / VATS system error
This is another one where I have no idea how to fix the thing it's talking about. I guess a good starter question would be where can I find the line for this sensor, so I can examine to see if it got corroded? Is it possible the trans fluid simply becomes too hot and the car won't get into gear? Because it seems to shift fine, even with the problem.
So those are my codes. Any help is appreciated. I realize not all of these are going to be related to the issue at hand. Right now I'm just trying to narrow it down.
Code 21 Throttle position sensor error (signal high)
Code 22 Throttle position sensor error (signal low)
How can it be both high and low? If the TPS was messed up I would expect it to stall more. It hasn't stalled once so far on this issue.
Code 31 Gear Position Switch (PRNDL) error
That code can also apparently correspond to a wastegate error on turbo cars, but my car has no turbo. It also has no indicator needle on the trans shifter, it fell off. Maybe that's what the code is talking about? How do I fix this?
Code 58 Trans fluid temp sensor circuit error (low voltage) / VATS system error
This is another one where I have no idea how to fix the thing it's talking about. I guess a good starter question would be where can I find the line for this sensor, so I can examine to see if it got corroded? Is it possible the trans fluid simply becomes too hot and the car won't get into gear? Because it seems to shift fine, even with the problem.
So those are my codes. Any help is appreciated. I realize not all of these are going to be related to the issue at hand. Right now I'm just trying to narrow it down.