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Constant P0156

Discussion in 'General Tundra Discussion' started by jbreslau, Mar 7, 2017.

  1. Mar 7, 2017 at 6:17 AM

    jbreslau [OP] New Member

    Jan 22, 2017
    First Name:
    2007 Tundra CrewMax
    I have a 2007 crewmax and the 02 sensor (sensor 2, bank 2) keeps failing. The dealer has replaced it twice. Two days ago after a 40 mile drive, the light came back on. After another 30-40 mile drive it went off. Now it is back on again. Dealer mentioned that sometimes the upstream sensor could cause the downstream to fail. Anyone ever heard of that?

    Anything else I could check?

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