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  1. 2006 DTS P 0420 code issues

    Cadillac DTS Forum 2006 through 2011
    After about 3 months of owning my DTS the check engine light came on and the code was p0420 and we replaced the cat converter and that didn’t help and then the front upstream o2 sensor and it still didn’t help what could be my problem
  2. Cadillac DTS (edited photo, front on DeVille body)

    Cadillac DTS (edited photo, front on DeVille body)

    Cadillac DTS front on current (2005) DeVille body.
  3. Cadillac DTS (presidential limo)

    Cadillac DTS (presidential limo)

    Cadillac DTS presidential limo rear
  4. Cadillac DTS (presidential limo)

    Cadillac DTS (presidential limo)

    Cadillac DTS presidential limo front
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