2000 grand am

i have a 2000 grand am the fuel pump went out i replaced it with new one now car is hard to start when is cold 3 or 4 cranks before it starts starts fine when hot has a 2.4 motor any ideas thank u 4 the help

fuel filter or kinked lines restricting fuel pressure.
add conditioners for injectors (that has helped my problems )

why was the pump replaced?? a no start if so what was the psi?
what brand were the parts
was the strainer replaced,fuel filter?
what is the psi now
any DTC