Winstar shuts off once it starts

My 95/96ish Ford Winstar in beyound crap. I mean I replaced contless tranny's in it and well it's just junk. Now I went out to start it and it started, but right when it starts it shuts off. I even give it gas and boom. I doubt its the fuel pump. Anyone else have any of these symptoms with there FORD crap before? Any help woud be appreciated