Check your fuel pressure, when you first turn on( when pump primes) then start it and see what you have at idle, then go ahead and give it some throttle and see what your pressure does. It should stay at 50-51psi if not, your fuel pump is shot. Easy fix though and not expensive if you follow advice on this site and get the pump through your local auto parts dealer. You can rent a fuel pressure gauge through auto zone for free fyi . Let us know what your pressure is at.