Dylan Happel

I'm going through this exact same thing. Everything is known good. injectors, coils, wires, plugs, compression, fuel pressure, injector pulse, injector balance test all dropped them the same amount. Throttle body is clean, MAF is clean, intake tube is clean. misfire data doesn't show up all the time but when it did show it said 5,7 and 4,6 but 4 and 6 were very low misfire numbers. I'm completely lost. I've been talking it over with a GM Master Tech and he's semi-stumped also.