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P0120 Diagnostic Trouble Code Discussion for September 2019

Throttle Position Sensor Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
2006 Chevrolet Suburban 1500 Z71 5.3L MIL Lamp on, Reduced engine perf VIN: 1GNFK16Z66
P0120: TP Sensor 1 Performance. Customer stated the vehicle has a check engine lamp on and the engine goes into a reduced performance mode as well. Upon arrival, found the vehicle not in reduced performance mode. Checked for codes and found the codes listed. Vehicle has had many repairs ...
September 05, 2019