2008 Explorer stalling issue

[Cole2008]

Hi. I have a 2008 Ford Explorer that just recently started to stall on me while driving. I replaced the fuel rail pressure sensor, fuel pump, fuel pump module, cleaned the maf sensor, throttle body with tps and idle control. When in park it runs great but once you put it in gear the fuel pressure drops 12 pounds but the computer still reads the normal (usual) fuel pressure. I don't have any other ideas on what it can be...please help!