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p171 p0171 drive sequence

  1. 2008-2013 CTS General Discussion
    I am sure a lot of you already know this but after spending 2 days banging my head against the wall I thought I would post I got a P171 and 174 left and right banks lean so decided to fix it. Found the pcv tube pulled out stucknit back in and then tried to clear codes with no joy. After...