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How to adjust for oversized tires
Yesterday I had my L5P 2018 in the dealership for a recall. I asked to adjust the ECM for 35s I just got. They told me they don’t know how. Said they opened a ticket with GM and they couldn’t do it. Is there a tuner or a way to fix the Speedo or am I just going to have to deal with it being...- UnclePhil
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- Forum: Duramax Tuning, Logging, and Gauges
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L5p P20EE
Sad times around my house. Second time taking my 2018 2500hd in for a CEL at only 600 miles. It has the dreaded P20EE code. So far they have : Done a regen Drained and refilled the Def and then regen Replaced NOX sensor Ordered a gasket for something No fix yet! Sent from my iPhone using Tapatalk