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    p0172 & p0174 (lean and rich) LSV8

    Hey guys, I am new here and tried to search but after several days of looking I broke down and decided to start this thread. I am working on a 2001 LS v8 w/ 150k miles with the DTC's p0172 & p0174. I am stumped as to what would cause one bank lean and the other bank rich? I have...
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