What I love about forums is that an internet search will find old but helpful information.

Getting P0093 code a few days after putting in the in-tank pump. in my case it dies and would not start. Rail pressure low. Might be sucking air from the line coming from the tank. After I replace the fuel hose and get it bled I will check the pressure again. Then injector leak off test.

Is the intank pump running?
You can open the bleeder valve on the fuel filter head, turn the ign. key to the on/run position, and the pump should run for about 15 seconds and fuel should pour out of the bleeder valve.
If the pump is not running, make sure you have the relay installed and the fuse is good for the fuel pump.

2005 Model Power Distribution Center under the hood:

_________________
Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve