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  1. Duramax Fifth Generation: 2011-2016 (LML)
    Hey guys, 1st post. 2012 LML with 192,xxx miles, so it's out of all warranties. I am throwing a P2202 and P2203 without the MIL / CEL actually illuminating, and no reduced speed warning on the DIC. I can clear the code with my Edge, but next drive cycle it returns after 20ish minutes. I have...
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