P2243

Discussion in 'Dodge Challenger SRT Hellcat' started by Lacan, Oct 30, 2015.

  1. Lacan

    Lacan Rookie

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    This morning upon start up, I got a CEL followed with a P2243. Information is limited on this code, has anyone experienced this?
     
  2. NX91Notch

    NX91Notch Gold Member

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    Vehicle:
    Challenger SRT Hellcat
    P2243 - O2 sensor 1/1 reference voltage circuit/open.

    Possible causes:
    O2 sensor (most likely this is the problem)
    PCM internal
    Return circuit open or high resistance.
     
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