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Throttle Position Sensor Tps
THROTTLE POSITION SENSOR OUTPUT VOLTAGE
1993 Pontiac Sunbird
November, 30, 2011 AT 12:26 AM
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.
November, 30, 2011 AT 12:41 AM
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
November, 30, 2011 AT 12:42 AM
Any of the related wiring or the PCM itself.
November, 30, 2011 AT 12:43 AM
I do know that I have a failing fuel injector I have a replacement for that on the way
November, 30, 2011 AT 12:45 AM
I replaced the pcm less than a year ago there must be a bad connection somewhere then
November, 30, 2011 AT 12:47 AM
Perform the same test on the same wires at the pcm and see if you get the same results.
November, 30, 2011 AT 12:50 AM
I have a funny feeling about the brain here-Wrench which was my next step on ur suggestion
November, 30, 2011 AT 12:56 AM
We'll find out when he finishes the test I just gave him.
November, 30, 2011 AT 1:14 AM
Ok got the same reading at the pcm now what
November, 30, 2011 AT 1:17 AM
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.
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