I am trying to sell me 2014 LML Chevy Duramax. Price it that hight due to me having a loan on it. It has a 5 stage EFI live tuner and pushes around 500HP. Just need to get rid of the truck so I can get a different one that’s larger due to having 4 dogs.
It is current having a fuel issue when it is in tune 1&2 if it’s in tune 3 or higher it’s fine. Was told that it is the fuel pressure regulator.