Diablosport Forums

My o5 F-150 feels like its starving for fuel @ about 3700 to 5200 but i'm not sure don't think i'm getting proper fuel delivery what would be the output of the [FP%] normally at WOT ya think

And do any of the tunes in the Preditor add any Returnless fuel pressure cuz I think I need some.

You need to change the fuel filter! F-150's require this every 5,000 miles or so! I change minds every 5000 miles and it still run hard!
Go luck,
Albert

I have 3 times in a month I think my pump is weak but a want a second opinon before i buy a 300.oo pump I'm tryin to find out what kind of % the pump should max out at in the real time data. highest I've seen mine is 30% and i'm sure it should be higher than that

Here are my 06 Roush F150 5.4Liter fuel Parameters.
Load: 15% to 100%
FLI: 46% revving
FP idle: 21.53 varying up and down
FRP: 39psi - 40 psi varying
FRP Volts: 2.60v to 2.75v varying at Idle and revving
I hope this gives you some starting points or a reference point to compare!
Good luck,
Mac

Have u monitered ur Fp at wot mine is pegging at 30% to 31% and it feels like its starving at 3500 to rev limit My fuel rail pressure is staying at 38 to 40 psi and i noticed that the FLI depends on the amount of fuel in the tank