Fuel System Pressure - Diesel
WARNING: This page is about a different car, the 2009 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The correct fuel pressure from the in-tank electric fuel pump to the high pressure injection pump for this vehicle is 59 psi +/- 2 psi. The correct flow rate for the in-tank electric fuel pump is approximately 53 gph (200 lph) at an ambient temperature of 73° F (23° C) and a constant battery voltage of 13 volts DC.