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P2138 Diagnostic Trouble Code Discussion for December 2008

Accelerator Position Sensor 1-2 Correlation

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Trouble Ticket Help Requests for DTC P2138
Help Request Posted
2005 Saturn Ion-2 2.2L Cuts out VIN: 1G8AJ52F95
P2138: Accelerator Pedal Position Sensor 1-2 Correlation Error. We have an intermittent problem with the accelerator pedal position sensor. The code will set and then the message loss of power will be displayed. We performed a top engine clean and cleaned throttle body. We found a bulletin on the harness in the right kick ...
December 03, 2008
2006 Pontiac Grand Prix 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: 2G2WP55206
P2138: Accelerator Pedal Position Sensor 1-2 Correlation Error. The car came in with app sensor codes I went through the test all wiring tests ok it has a 5v ref like it should but was setting the codes. According to the test it said to replace the app sensor so I did. It ran ok for a few minutes and than started setting t...
December 09, 2008