I got a 96 Pontiac sunfire and i put a fuel pump and fuel filter on and it still stop after a while of driving

Should verify fuel pressure, it should build up to about 37 to 42 lbs. and hold steady at a minimum of 32 lbs. for 3 minutes with the engine off. If it drops then need to do a dead head fuel pressure test. Then you can verify where a leak may be. It could be a bad injector, fuel line to the injector, or the regulator.

ya should check your fuel pressure also what motor do you have if it is TBI you will not have 32 lbs port injection you will . but it sounds like you have a bad Ignition Module or coil. when it stops next time check for spark and fuel

There is no TBI on that one.