p0136

  1. Spencer C

    Codes after replacing o2 sensors Cats

    So i replaced my o2 sensors with the NGK sensors about 7k miles ago. Didn’t have codes for a while, but just checked it today and I’m pulling codes P0031, p0051, & p0136 (all related to o2 sensors). I’m also pulling codes for p0303 (cylinder 3 misfire) and p0455 (evaporation emission system...
    • Spencer C
    • Thread
    • catalytic converter cylinder 3 misfire error codes evap evap system exhaust o2 sensor p0031 p0136 p0455
    • Replies: 4
    • Forum: TJ General Discussion
  2. Colben_22

    Check Engine Codes P0031, P0051, P0138, P1494, & P0136

    I bought my Jeep a few months ago and shortly after I got home with it some check engine lights came on. I haven't had much time to work on it yet, but I am trying to diagnose the main problem first. The codes it is throwing are P0031 (Oxygen (A/F) Sensor Heater Control Circuit Low Bank 1...
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