So it will fire right up and will idle for maybe about 15-20 seconds tops, and then kinda like shake and miss almost it sounds like and die, and if I try to give it gas no matter when after its started it immediately dies. Any ideas? It's a brand new tank cause mine was trashed and a new pump, and I cleaned all lines throughly. I've tried two differnt Mafs and neither made an improvement

Is it running rich or lean? You should smell un burnt fuel in the exhaust if its getting too much fuel. If it isn't getting enough fuel, you can also test fuel pressure looking for 43 psi on the fuel pressure gauge. Might be low fuel pressure, since you cannot rev it above an idle.

No I haven't gotten to check fuel pressure yet, but it smells like it's running super rich, and I pulled the ecm this weekend to check codes and I got a 55 all system checks are good. So it's weird.