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2014 Denali P2127 P2138
I've ordered the connector for the TPS to rule that out. My wiring diagram doesnt show a ground for the APP. It looks like the sensors ground thru the ECM. Like I said in the first post I've replaced the APP 2 times and the TPS 1 time. I am not sure how to fix this. Dealerships around me cant...- ZDR1987
- Post #6
- Forum: Engine & Drivetrain
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2014 Denali P2127 P2138
Thanks for the reply. Is sensor 2 built in to the pedal assembly, not sure what that means.- ZDR1987
- Post #4
- Forum: Engine & Drivetrain
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2014 Denali P2127 P2138
Please help! I have a 2014 denali 6.2L DTC p2127 p2138 Driving along and for no apparent reason my service trac control, service stabilitrak, and reduced engine power come on. It shows the 2 DTCs above. I changed the pedal pos sensor, didnt fix it so I thought maybe got a bad part and changed...- ZDR1987
- Thread
- denali dtc p2127 p2138 pedal positon sensor throttle position sensor
- Replies: 8
- Forum: Engine & Drivetrain
