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Thanks for posting those links, I used a lot of the info to revise my trans tune

Things get funky every time I write cal or write entire, I have to reset the fuse for my ECM in the trunk otherwise the car don't shift. Once I do that the car drives but TUTD and sport mode dont...

NOt to bring this up from the dead but I am running into a similiar issue in my 2009 G8GT, I just replaced the stock 6L80 with a new Supermatic 6L80 from GMPP. If what I am reading is correct all I...