P2138 2004 Saturn Vue

At this point I would concentrate on monitoring the APP sensor signals directly at the PCM especially after what you found at the C200 connector. Monitor as many as you can simultaneously while test driving or manipulating the harness or load test the six wires from the APP to the PCM.

I recall reading somewhere the same thing to monitor the app sensors,oddly enough they are within what gm si says is exceptable?

And since you mentioned the water intrusion there is a bulletin about that tied to the P…F.

THANK YOU

Do you have a two good 5v references at the pedal? What does scan data show when you sweep the pedal?

Per gm they are within spec numbers.

I also need to get back to this chitbox LATTER​.​HAVE to help another tech figure out why after front brake job done he has no turn signals :(

Clear codes and actuate the pedal all the way with the key on engine off. Does the code come back right away?

Do you have a scope? If no what test equipment do you have? Does the vehicle go into limp mode immediately or is there a condition that causes it? Have you monitored data while moving harness?

Car does it very random,I drove it and nothing,si I drove and it went a block then limp

Im still on a learning curve with a SCOPE​.​ALL these years never really needed and now im taking classes paid by great company owner.

How long does it take to set the code again?

Depends on time of day or days from what we have seen and customer explanation.