Do Any of you who have done the 2.3 turbo swap into your ranger know what controls the fuel pressure on the 2.3 turbo engine? Does it use an FMU or is pretty much all the flow controlled through the injectors by the computer? Also if done on an 85' earlier, what has to be done for the fuel return line to the tank?
The fuel pressure regualtor on the fuel rail controls the fuel pressure. There is a vaccuum line connected to it and is not adjustable from the factory. BUT, an aftermarket adjustable regulator for a 5.0L Mustang will work on the 4 bangers. Hope this helps you out.