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P2138 Diagnostic Trouble Code Discussion for October 2012

Accelerator Position Sensor 1-2 Correlation

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Trouble Ticket Help Requests for DTC P2138
Help Request Posted
2008 Nissan Altima S 2.5L MIL Lamp on VIN: 1N4AL24E78
P2138: Wrong APP sensor rationality signal. This vehicle came from the dealer with no throttle response. vehicle starts and idles fine. Dealer told customer the vehicle needed a new main wire harness and engine ECM ($5000+). I checked the 6 wires that go from pedal sensor to ecm and all are fine. I have...
October 16, 2012