dodgemaniac
New member
- Joined
- Jul 4, 2009
- Messages
- 333
Tonight I installed a fass external fuel pressure regulator on the return side of my p pump.
I ran a -06 line from the outlet of the pump to the inlet of the fuel pressure regulator. I then have the outlet of the regulator plugged. The bottom port on the regulator (relief/ return port) is plumbed into the tee fitting that came with my lift pump. Also plumbed into the tee in the injector return and exits to the tank. I am running a fass 220gph lift pump that is internally regulated to 45 psi.
My problem is that I can't seem to adjust the pressure lower then 48 psi at idle. I can get it to drop to 44 psi when free revving it .Am I incorrect in thinking I should be able to drop the pressure down to any pressure at the regulator? I am able to adjust the pressure higher the 48 psi at idle but not less.
Do I have something plumbed wrong? Or is the only way to tune the regulator is by applying a load to the engine?
I ran a -06 line from the outlet of the pump to the inlet of the fuel pressure regulator. I then have the outlet of the regulator plugged. The bottom port on the regulator (relief/ return port) is plumbed into the tee fitting that came with my lift pump. Also plumbed into the tee in the injector return and exits to the tank. I am running a fass 220gph lift pump that is internally regulated to 45 psi.
My problem is that I can't seem to adjust the pressure lower then 48 psi at idle. I can get it to drop to 44 psi when free revving it .Am I incorrect in thinking I should be able to drop the pressure down to any pressure at the regulator? I am able to adjust the pressure higher the 48 psi at idle but not less.
Do I have something plumbed wrong? Or is the only way to tune the regulator is by applying a load to the engine?