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What happened to my tach and speedometer?

Discussion in 'Audio & Electronics' started by acolic, Mar 29, 2021.

  1. LoneWolf3574

    LoneWolf3574 Senior Member Military

    Age:
    47
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    Location:
    Arizona
    Ram Year:
    2006
    Engine:
    Hemi 5.7
    No, the odo is per cluster. Your mileage and VIN are stored on both the PCM and cluster. I do not know what will happen if you put a "temporary" cluster in with different mileage and VIN, then put your original back in. If I were to guess, you'd get an emission fail due to a mileage mismatch.
     

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