adsm08
Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
- Joined
- Sep 20, 2009
- Messages
- 34,623
- City
- Dillsburg PA
- Vehicle Year
- 1987
- Engine
- 4.0 V6
- Transmission
- Manual
- Tire Size
- 31X10.50X15
Yeah, the only place I see a potential problem with the existing fuel system is in the pump itself.
Most Rangers use a mechanical returnless system, which is actually a return system, but rather than returning from the rail the return happens in the fuel filter, when line pressure farther up gets high enough.
The ecoboost vehicles all lack an external fuel filter, and are electronic returnless, which means the computer pulses the fuel pump to achieve the desired pressure.
Honestly, even that I don't think will pose a major issue. The only physical difference is the return port on the pump. Cap the return port and put a non-return filter in.
Then you just have to adjust the wiring a hair. MRFS run the pump constantly like a return-type, with a direct line between the computer and the relay. ERFS uses a fuel pump driver to create the duty cycle. Hook up your FPDM to the computer, hook the pump to the FPDM, and then you should be good to go on that front.
Most Rangers use a mechanical returnless system, which is actually a return system, but rather than returning from the rail the return happens in the fuel filter, when line pressure farther up gets high enough.
The ecoboost vehicles all lack an external fuel filter, and are electronic returnless, which means the computer pulses the fuel pump to achieve the desired pressure.
Honestly, even that I don't think will pose a major issue. The only physical difference is the return port on the pump. Cap the return port and put a non-return filter in.
Then you just have to adjust the wiring a hair. MRFS run the pump constantly like a return-type, with a direct line between the computer and the relay. ERFS uses a fuel pump driver to create the duty cycle. Hook up your FPDM to the computer, hook the pump to the FPDM, and then you should be good to go on that front.