2014 Yukon began throwing P2127 ( Failed throttle or pedal position sensor) engine code sporadically a few weeks ago. Replaced the accelerator pedal/sensor....problem remains. Replaced the throttle position sensor...problem remains. Wiring from the APS to fire wall looks undamaged and wiring from the engine fire wall to the TPS looks undamaged. What do I still need to check/replace?
2014 Yukon Throwinb P2127 Code - SOLVED
- Thread starter acfondaw
- Start date
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Might put a good scanner on it and graph the throttle and pedal position sensors, and compare for tracking and dropouts.
Joseph Garcia
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Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
So I learned today from the good folks at AutoZone that when I disconnect the TSP/ASP I must allow the computer to "relearn". Run at idle for 3 minutes...shut off for three minutes...run again for three minutes at idle...shut off for 3 minutes...then run with accelerating in Park. Computer must "relearn" th position of the throttle. Problem has been solved.
