Cat C-15 mxs fuel pressure ?

If your fuel pressure is steady I'd look for other problems

 

hi lester
what would u consider looking for, what other problems, cat has checked cac psi, cylinder cutout, return press valve, boost sensor, hand primer pump, checked both turbos.

 

Did you figure this out?

 

still nothing, had it with cat four times , changed few things ie trans pump hand prime pump couple sensors did many pressure tests and other things but work in progress, curious myself what will come out to be the issue.

 

How much boost do you make?

 

change check valve in filter head to 304 9385 that will give you more fuel pressure, 3049385 is fitted to sdp acert truck engine

 

Hi
Well I took matters in my own hands, got me ET, used different fls/fts, and bought a Known horsepower helper, truck is a rocket.

 

so which fls/fts did you end up with?
What did your horsepower helper do for you?
what is horspower rating of your engine and serial number?

 

40/-7, "horsepowerhelper" tuner box.
I run 550 HH, in a nxs.

 

cool going have to try those numbers and look into tunerbox, mine is nxs 550hp with hh file