I have paid 2 different "Tuners" (one was a shop with a dyno) to make this thing run. And it's barely derivable.
Nothing special at all it's just a bone stock 2019 4.3L with a TH350, all i really want it to do is run like it came from the factory.
Ended up replacing my old EFI live with HP tuners to just do this my self but i need a bone stock tune file for a 2015 (the newer the better) and up 4.3L to get started.
I looked through the one that is in the tune repository but it looks like it has been messed with quite a bit.
Any body have or can get a bone stock engine tune for a Gen V 4.3 ?
If needed i will pay for it in lieu of buying another ECM just to download the tune.