Good morning everyone, I’m new to this site so please bare with me. I have a 2015 Gmc 2500hd Denali with 6.0 gas. It falls on its face when I try to pass or just give it more gas. Rpm goes up but just not performing. I’ve had transmission checked it’s good. Not throwing any codes for lean like a bad injector. Air flow is all good. I’m thinking injectors even though it idles great and typically runs good. I can afford to drop it at mechanic but now it’s personal lol. Any idea and I know it’s not just cut and dry. Thanks so much.
