No power tp the fuel pump, injectors not pulsing, no fuel.

Is the filter clogged. Check if regulator bad. Check to see if injectors are getting power and pulsing. Also is there fuel in tank?

Chevy Caprice 305 TBI Fuel pump AC Delco EP375.avi ...

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www.youtube.com/watch?v=A39lqWe1sm8
Jun 8, 2010 - Uploaded by 921VORON
Caprice 93 Fuel pump AC Delco EP387 (originally) replace to EP375 (B 4.3W(L99) (1994-1996))

You need the computer and the harness or you have a ground issue test for injector pulse with a noid light

Check all engine grounds as the ECU relies on the control unit to find a ground and pulse the injectors. Also check the crankshaft sensor to make sure its pulsing when rotated. It should produce a 5 volt reference as it moves. Also check that you have fuel pressure as the pump also relies on a good ground to power up. Everything is controlled from the ECU.

If you have spark, the computer is getting the signal to pulse the injectors.
If you have power but no ground pulse, you may have fried the driver in the computer again.
You could get a used computer from a junk yard to test it.
There could be a short in one of the injectors or the harness at the computer, or a break in the circuit from the computer, and that could kill the driver in the computer.

Could be loosing power or pulse to the injectors. I would check for power and pulse ground at the injectors and see if you are loosing one or both.

you may wanna replace your injectors them self

2.3 V-6? You should be a 2.5 V-6 whether you have a TBI (throttle body injector) or sequencial, If there is no injector pulse then move your inspection to the distributor, there you will see a distributor pick up, this controls spark and fuel, and yes the rule is if there is no spark then there is no fuel but you case is special you have spark and no fuel pulse,you will need to inspect this for corrosion as it can give spark and no fuel injector pulse,that is one area of no injector pulse, Then inspect the MAP sensor (your a spped density), the most common complaint for a map sensor is it start then dies. inspect this sensor its mounted on the firewall make sure the vacuum hose is connected, and that it is plugged in.

Make sure the injectors are pulsing. Whatch to make sure mists oj fuel are coming out.

Replace the pick up coil if there is fuel to the injector.If there is fuel pressure at the injector,then it is the pick up coil.If the fuel pump is working,and the fuel filter is new,then there is fuel at the injector,just no pulse,correct?