Thread: P1125 and P2138

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  1. #1 P1125 and P2138 
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    Hey all!

    I have a 2006 GP GT with the L32 supercharged motor with an intermittent issue that throws both P1125 (accelerator pedal sensor fault) and P2138 (Throttle/Pedal Pos Sensor/Switch D / E Voltage Correlation) and throws the car into limp mode. I've looked at most of the wiring pertaining to this circuit, just havent had the time to really get up under the dash and inspect everything. Underhood wiring looks good, no shorts there, throttle body opens and closes smoothly and freely. Has anybody had this issue before? I've done some digging around on forums and found that this can be a pretty challenging issue to solve if it isnt simply the accelerator pedal sensor going bad.

    If you've had experience with this before, what did you do?
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  2. #2 Re: P1125 and P2138 
    GrandPrix Junkie
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    Might want to post this in the V6 Supercharged section, but here's what I've found. The second link would be where I would start besides checking your grounds.

    Might be a bad ground from the pedal at the TB

    2004 gt accelerator position problem with codes p1125, p2120, p2138

    P1125 and P2138, replaced pedal won't go away
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