No fuel from the injectors

96 GMC 4.3l Jimmy fuel injection issue, no fuel from the injectors, tested power to each injector. Have power to each 4 strobe, 2 have constant power with ignition on but strobe when motor turns over.

i have replaced all the fuel system up to the fuel meter body, good fuel pressure the injectors have power to each. New pressure sensor, crank sensor I have done complete tune up. Dont understand why two of the injectors have constant power with ignition on but strobes when you crank it over. Before I did the work on it. Would run but after a few min hot or cold it would stall but if you feathered the pedal you could keep it running. When going down the road it would stall when you stopped suddenly or at a light. When it stalled in idle (hot)it took a cool down period before it would start again. I replaced fuel tank, pump, filter and relay. Now it wont even try to start plenty of fire air and fuel to the fuel meter body. Wtf im stumped. Need more than one thing to test. Unless I have one option. Please help.