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p0172

  1. P 0172 on a 2010 CTS 3.0

    2008-2013 Cadillac CTS General Discussion
    Hi, I have a 2010 CTS Wagon with the 3.0L. I’m getting a P0172 code and the odd misfire. Just replaced the spark plugs but no change. Could it be an O2 sensor.. any ideas? Thanks.
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