Quote:
Originally Posted by S.J.SLEEPER
I believe the fpr is preset @ 53psi
and the return line feeds the pressure regulator on the fuel module which diverts fuel back into the bucket/pump module
note: return line located @ T-block in front of fuel filter by rear control arm-frame mounting area
|
Now being that it's preset and fuel pressure is a constant, what makes the pressure go up at WOT? Is it the increased flow past the regulator while the injectors pulsing faster what increases the pressure?