Wont idle

[dventers]

So after putting a remanded engine in and noticing they used dorman phasors I replaced timing set with ford parts..finally got that all done..my issue now is the engine wont idle and gives code for low fuel rail pressure.. i've replaced o2 sensors,mass air,fuel pressure sensor even tried throttle body..any suggestion on where to go to next..?thanx for your time...

 

[Dino Dino Bambino]

If you haven't already replaced the fuel filter, now would be a good time. This might not fix the problem but it's a cheap service part to cross off the list of potential culprits.
Otherwise I suggest you check the fuel pump sock filter and test the fuel pump itself.

 

[dventers]

Jus replaced pump and filter with same results..could the fuel pump driver module cause this issue.??