What's causing the car to hesitate & cuts off while driving? on 1997 Chevrolet Monte Carlo

I had a new fuel pump placed on my 97 monte carlo LS & it drove just fine leaving the shot, but the very next day the car started acting like it didn't want to go & when I give it some gas it shuts off,please tell me what the problem

Asked by for the 1997 Chevrolet Monte Carlo
did you change the fuel filter when you changed the pump ? check your fuel pressure