91 4.3 Injectors Will Not Pulse

I Swear I Have Tried Everything.... I Also Own A 91 S10 With The Same Motor So I Have Switched All Kinds Of Parts To Try To Figure This Out... Here Is What Is Going On... The Injectors Are Getting Fuel And It Has A New Pump And Filter... They Just Will Not Spray. I Have Stripped The Wires Back And All 4 (2 To Each Injector) Test Hot. When I Ground Out 1 Wire On Each Injector They Spray, But Not Like They Should. They Just Dump Fuel When Grounded. This Is My Wives Only Means Of Transportation And I Am Getting In More And More Trouble Because I Cannot Figure It Out... Here Is A List Of The Things I Have Replaced.
Fuel Pump And Filter
Relays
Computer
Module (Little Black Box That Runs Injectors On Distributor)
Injectors
I Just Cannot Figure It Out... I Am Ready To Find An Intake For An Old Astro And Carborate This Thing... Please Somebody Help!!!

The white wire at the ignition module sends a pulsed ground signal to the PCM while cranking and while running. The PCM sends a pulsed ground to the injectors through the dark blue and dark green wires, (gounding them out will open the injectors and they will dump fuel). The pink wire at the ignition coil must show battery voltage with the ignition in the RUN and START positions. The white wire at the ignition coil must show a negative pulse while cranking. Post your results for each wire.