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p0137

  1. 11-16 LML Duramax Powertrain
    My Lml is throwing the P0137 code which according to my diagnostic tool is Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2). I was under the impression that duramax didn't use oxygen sensors so Im at a total loss. Does anyone have any ideas at what the problem is and how to fix it...
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