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P2135 Diagnostic Trouble Code Discussion for June 2021

Throttle Position Sensor 1-2 Correlation


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Trouble Ticket Help Requests for DTC P2135
Help Request Posted
2003 Chevrolet Silverado 1500 HD LS 6.0L MIL Lamp on, Reduce engine power VIN: 1GCGC13U93
P2135: Throttle Position Sensor 1-2 Correlation Error. ... ago and had a p2135 reduce engine power. I was not able to duplicate it at all and decided to let the customer know that i was not able to duplicate the problem but let them know that they are know for throttle body issues. He decided to go with the ga...
June 29, 2021