92 2500 454 tbi chevy truck starts then quits on 1992 Chevrolet 2500 Pickup

fuel pump went out replaced it then the truck started then dies replaced it 2 more times did not work check then grounds wires replace every senor pcm time set fuel presure regulapr

3 answers 2 comments
scan test for codes
Dual tanks? Need to know!
single tank fuel pump at 35 psi injector pulse great new pcm
Are you actually TESTING fuel pump/pressure? Are you getting correct injector pulse? PROM switched over when PCM replaced?
every thing has been check and replace more then once