fuel problems

have a 1994 gmc 1500, 4.3 engine. fuel supply problems. replaced pump with Delphi pump getting 2 second power to pump truck still will not start. could it be a relay problem or bad connection? please help. thanks james

Basics, got spark, do the injectors spray when first cranking, will it start spraying carb cleaner into the intake?

thanks for helping. have fuel at inlet line on back of tb. injectors not spraying. however I do not have spark. will injectors spray if I have no spark? thinking problem with spark to be coil or pcm. again thanks for help..james

OK,power to the pump for prime, but does it run, if not check the ground side circuit to the pump.