feul pump problems any advice?

[rps13driver]

all right so my 1993 240sx decided to die on me this morning, i have replaced the fuel pump twice both times the engine starts but then 5 minutes later it dies, then there is no pressure from the pump.....so im out of ideas.there is power to the pumpthe relay worksand the fuse is still good

[vancouverbc]

No idea. Dirty fuel filter? Do you get spark after car dies? battery in good shape? the computer sends ground to pump relay to turn fuel pump on and off. does car start up right away after it dies?

[rps13driver]

everything works, pump turns on, relay switches, spark is good, and filter not problem cuz i pulled the hose off vefore the filter and still nothing

[rogoman]

Check the ground for the fuel pump; insure that it's secure.

The fuel tank gas cap may be defective and not venting properly which might create a vacuum condition in the tank.