Could person install a stiffer spring into a FASS if pressure has gone down over time and get 20+ out of it or is it only made to produce so much pressure?
kinda new at this always had fords but i got a 00 2500 150 fass II vp44 just put on last week what should my psi be at
so if its between 15 18 leave it huh
OK a strayed off question but what gauges are you using to monitor fuel pressure? Would you trust a Edge Attitude on a VP truck?
The Edge pulls info from the data link IIRC.
edge has an electric sender. so yes its trustworthy.
i think your thinking of fuel temp, theres no lift pump pressure sender in a vp