1993 Pontiac Sunbird Repair Question
Throttle position sensor output voltage
White? There is no white wire. There is a gray wire and that is the wrong one. You should have the black lead on the black wire and the red lead on the blue wire.
ok i tested on the wires as you said and get a reading within spec but when i check for dtcs i am still getting one for the tp sensor what else could cause that
Any of the related wiring or the PCM itself.
i do know that i have a failing fuel injector i have a replacement for that on the way
i replaced the pcm less than a year ago there must be a bad connection somewhere then
Perform the same test on the same wires at the pcm and see if you get the same results.
I have a funny feeling about the brain here-Wrench which was my next step on ur suggestion
68 questions asked
We'll find out when he finishes the test I just gave him.
ok got the same reading at the pcm now what
If you're absolutely sure that that code is resetting immediately, then you have a bad PCM. It would be better if you had a scanner to look at the TPS numbers that the PCM is seeing.