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P2138 Diagnostic Trouble Code Discussion for February 2011

Accelerator Position Sensor 1-2 Correlation

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Trouble Ticket Help Requests for DTC P2138
Help Request Posted
2005 Chevrolet Silverado 3500 6.6L RPM change VIN: 1GCJK33225
P2138: Accelerator Pedal Position Sensor 1-2 Correlation Error. This vehicle was brought in to have a check up as the customer is a little gun shy about losing another engine. The only symptom the customer complained about was an intermittent spike in RPM once or twice a week only lasting for a split second. The APPS is be...
February 10, 2011
2005 Chevrolet Uplander 3.5L Hesitation, MIL Lamp on VIN: 1GNDV23L85
P2138: Accelerator Pedal Position Sensor 1-2 Correlation Error. ... Uplander in the shop and someone decided to replace the 20 buck cable that went from the gas pedal to the throttle thingy with a couple hundred dollars worth of electronics, giving those of us in the industry the opportunity to earn more money. The truck...
February 21, 2011