Hey everyone. Im having an REP situation that would previously throw P1516 P2101 before I increased the parameters to 80%, but this was just a band-aid. The vehicle has ran fine for the last year and a half, then started going into REP and the throttle body basically fluctuates like the ECU cant hold it in position anymore. The throttle body and harness, pedal and harness, and ecu have all been replaced to no avail. All the GM VIS diag procedures have been followed and pinouts have been checked.
I don't see a smoking gun in the tune or in the logs, but I can see APP at a given percent like 100% and the throttle body will only open 45ish percent and fluctuate and if you stay in it long enough it might eventually slam wide open and go, or sometimes lift off the pedal and stab it again and it will go WOT. Engine off I can work the pedal and throttle body tracks perfectly.
I don't know who tuned it but a/f are really good and runs really good, when it does run, but Im just trying to get it throttle body to act right and vehicle to be reliable again.
LSA Silverado TPS.hplLSA Silverado TPS.hpt