fuel problem

[badcountryboy]

hey yal i have a 90 chevy beretta 3.1 v6,
try to crank the car and runs for a second r less then shuts off, after problem sovleing i came to the idea that it wasnt getting the fuel like its suppose to so i first took the intake piping of the intake and took a bottle with some gasoline put the cap on the bottle after making a small pin hole into the cap, letting someone else try to start the car i took the bottle of gas feed the gas into the intake and aslong as i feed the gas it ran with no problem but take it way car dies, so ok i know its fuel problem. things i've changed the fuel filter, fuel pump-used but has good PSI, fuel pressure regulator, fuel pump relay ,and finally the ECU "main computer". i've also have took of the intake plem to test the injetors "good", so i was thinking i would let yal help me think on this one. any info would be graceful.

[Barry]

I like your style! Pinhole in a bottle cap is pretty interesting.

You replaced the pump, but does it turn on when you turn the key to the run position? You should be able to hear it prime for a second or 2.

[badcountryboy]

yea its runs,primes and cuts off

[Money pit Beretta]

Did you replace the #15 fuse?

[badcountryboy]

o yea i forgot to say that theres also a fuel pump tester line that u just hook to a pos 12volt and makes the pump come on well with that hooked straight to the batt u hear the pump whining very good and still the car doesnt run.

[Money pit Beretta]

3X00, do you have any idea?