I really hope someone can help because I'm about to take a match to this POS.

97 sunfire not getting any battery voltage to the injectors. They go live when the pump primes but once it's done it's 3 or 4 second thing the voltage vanishes and actually grounds. From what I understand it should read battery voltage constantly with the key on. Car just cranks, doesn't run for 2 seconds and cut off so I think it's bigger than the passlock.

It's got gas and good spark...already tried known working pcm, cluster, ignition module, ignition switch, ignition barrel, engine harness and just for the fun of it the dash harness too.

Is it time to replace the pump??

Well after everyones help I'm half way there
...Unplugged the Ebcm and the Airbag sensor under the passenger seat and she fired right up, so one of those modules is interfering with the cluster.