XJ buddy bought a TJ which suddenly developed an intermittent crank/no start. Pulled up the harness into the engine bay and started peeling back tape. Finally found 3 insulation cracks right next to each other, and signs that it had been repaired before. Unfortunately I can’t remember what connector it was, but I think it was brown & brown/white wires.
Spliced in new wire, and re-loomed just about everything. Nothing better than fresh wire loom.
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And also subsequently learned/remembered that the plug at the rear driver taillight also supplies power to the fuel pump.
Objects were thrown, I ain’t gonna lie.