Injectors wire shorted

As vehicles age, they get frail, and that's especially true for a truck that's over twenty years old. That injector wire is a ground and when it sparked, I suspect it pulled apart and the short could have fried anything. Fuel pumps build pressure and when proper pressure is reached, they shut off. You need an electrical mechanic to find all that's damaged, and I suspect that the cost is going to be more than the three grand your 23 year old truck's worth.

Sounds like the injector power shorted to the injector ground, that ground is controlled by the ECM so a short into that circuit can fry the ECM and also blow injector fuses and ECM main power fuse. So Ed is right about needing a professional to trace it down and fix it right, if it is tested wrong it can fry new components. Yes it can be a budget killer with a shops labor rates today. But you might be money ahead fixing it especially if the truck is still in decent shape and it fixed compared to buying another truck.