My "resurrection" build of 6602 (Mark 3.1) is progressing to the point where I'm sorting out the wiring installed by the previous owner. Everything related to starting the car -- starter motor, fuel pump, MSD box, etc. -- seems to work properly. The car starts and runs. Electric gauges work.
What doesn't work is anything that goes through the Blue Sea Systems 12-circuit fuse box. Lights, horn, wipers, etc. There are six circuits. I disconnected each of the six wires, one at a time, and tested each circuit and each one shows a fault in continuity testing.
I did discover two blown fuses and imagine those are related to a short somewhere. One other thing that appears odd to me is that there is a ground wire running from the 12V DC Negative fuse box post to an isolated grounding post on the dashboard. Do fuse boxes need to be grounded?
I'm at the limit of my electrical knowledge here. What else should I be looking at? Do entire fuse boxes ever go bad?
Thanks in advance!