wiring question need help asap!!!
Unless the battery cabling assembly wasn't replaced with a stock replacement.
Most stock batteries explode and need cleanup of that whole area, I can see it having been replaced with a black wire.
I really only know of 4 or so wires in that area...
- Starter hot wire typically red.
- Starter ground
- O2 wire bundle
- Oil level sensor bundle
Not sure what another thick black one would be.

