What can cause pressure bleedoff...

I have new fuel gauge installed, new pressure regulator, and soon to have new filter, and new fuel pump installed..............................


The problem i am having is, after the car is completely warmed up i don't have the fuel pressure i do when i fiirst crank the car, and when the car is switched off it takes only a few seconds to bleed down to ZERO PSI......on the fuel pressure.......


Now is the pump or the filter gonna have anything to do with this problem, or do i have a problem elsewhere.........I had this problem before the regulator install with the factory regulator as well..........just for info


thanks

jason

thats the problem after the car has been running a while........ It loses around 10 psi.....myabe a little more...


I think the pump is gonna get rid of this problem....


jason