01 Blazer Dies When Given Gas

I Am working on a 01 blazer that will start and idle but when given gas it will die sometimes i can get it to rev up but most of the times it dies if put into gear and try to go it dies. things that have been changed fuel pump, maf, wires, plugs, cap, rotter,fuel filter, it wont pull any codes except a fule level censor high voltage wich is why the gas gage keeps jumping but i couldnt think that would stop it from running

Check the EGR and IAC valves as well as the vacuum lines. Also test the fuel pressure.

Sounds like fuel pressure.

Try checking the fuel filter also if its dirty enough it won't be getting enough gas and will die when you try and push the pedal.