Hi All,
I have a GEN1 that I'm trying to sort out after engine replacement. I have a question regarding checking fuel pressure. I have my fuel pressure gage installed on the fuel filter inlet banjo fitting.

With everything connected I get ~42-44psi on (2) different Fuel Pressure Regulators. FSM states this should be 38psi.
When I disconnect the vacuum line to the FPR I get 53psi, which is within specification of the FSM.

I'm confused about the 38psi from the FSM. Is this a MAX limit? Would only 4psi above that cause issues?

Chad Zeilenga
1989 Gen 1 Montero