1989 Camaro starts then dies immediately

[89rscamaro]

I have a 1989 RS camaro 305 TBI the car died on me a few weeks ago.
The car would crank but not start. After finding no power to fuel pump relay I replaced the computer. Now the car starts but dies immediately. I have spark and fuel any ideas would be greatly appreciated.

[chevyrulespops]

The first thing I would have to do is check for a code!!! the computer might have something that can help start you in diagnosing the problem....let us know

[89rscamaro]

There is no troublecode now there was before i changed the computer. I hear the fuel pump whine now,the car starts fine but immediately dies.

[89rscamaro]

I have 13 volts at battery and alternator fuel pump whines in tank, battery volts at coil and distributor. Good spark the car starts fine but then dies immediately after.

[mikeemon]

Try testing the fuel pressure.

[89rscamaro]

Is there any way to test fuel pressure without a fuel pressue gauge.

[Morley]

Originally Posted by 89rscamaro

Is there any way to test fuel pressure without a fuel pressue gauge.

Ummm, not really. take the air cleaner off and have a look down the throttlebody while someone starts the car. You are looking for the injectors to be giving a good strong spray. If they aren't, change the fuel filter and try again. If they still aren't spraying strong you'll need a fuel pressure gauge.
Make sure the injectors aren't blasting fuel in too, this will flood the engine.

[chevyrulespops]

Do you know what that trouble code was? If your fuel inspection is good this problem might be pointing to a faulty module or some faulty wiring to the distributor, double check your fuses also. The computer that you grabbed, where did u get it?

[89rscamaro]

The troublecode was 54, fuel pump circuit low volts. The computer is a reman from Oreilly's. I can hear the injector pulses and see good spray of fuel.

[89rscamaro]

I just got a fuel pressure tester only have 2 psi with return line clamped shut, filter is new so now I'm replacing fuel pump.