1992 190e mercedes won't start?

1992 190e mercedes won't start?
1992 190e mercedes won't start?
never had any trouble with it b4. its got spark. and i can here the fuel pump. and there is fuel getting to the fuel injector distibuatior.but not cuming out of the fuel distrbuator thingy with pressure.i dont have any thing 2 test fuel pump pressure. but we thought it was the EHA fuel valve regulator and we replaced it with a second hand 1 with no luck