I have a new VP44, and installed Bosch 300 injectors at the same time. My fuel pressure light is flickering when I gas on it, and I got the dead pedal a few time twice yesterday. So cummins sent me a new lift pump today under warranty and I also have a Holley blue pump coming at the end of the week.

 

Well I just got my new Lift pump on and the low fuel pressure light still comes on it don't seem as sensative but it still comes on at hard throttling.