While it's very unlikely that a shorted injector wire would take out the EFI fuse as the injectors are not fed from that fuse, those connectors are 32 years old and likely very brittle. Be sure to have some new connectors on hand as well as some pins before you start.I plan on cleaning the injectors, so that's probably no a bad idea.
Connector 90980−10720. Pins w/pigtail 82998-12270.
In the Engine Control section of the EWD, you'll see that the EFI fuse feeds constant +12 to the ECU.
It also feeds the EFI MAIN relay which powers the entirety of the EFI system.
Follow the Y-R wire that goes through connector EB1, and you'll find all your suspects right through the circuit opening relay (COR) that controls the fuel pump.
If you simply unplug the COR you have eliminated a strong possibility.
Divide and conquer with a meter and the EWD.