What's the best way to handle ignition coil wiring on a Jeep

Jeep Garage
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Hey, you won’t believe the headache I’ve had with my '86 CJ7 258 lately. It just wouldn’t start, and I was tearing my hair out trying to figure it out. Turns out, the culprit was this black casing thing (looks like a fuse holder, I’ll show you a pic) along the green wire that’s connected near the ignition coil (TFI upgrade coil). There’s no voltage passing through it, and once I bypassed it, I got spark.

So, here’s the deal: can I just skip this black casing altogether, or is it actually doing something important? Any idea what it’s for?

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Fusible links are typically installed in high-amperage circuits to prevent damage to the wiring and components.

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Skipping the fusible link altogether is not recommended, as it serves an important safety function.

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It’s possible that the fusible link is blown and needs to be replaced.

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If taking out the black thing made your ignition work again, it means there might have been a problem with it, like a blown fuse or a broken wire inside.
But before you decide to leave it out, I suggest asking a mechanic or an auto electrician to check it out.

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First, figure out what type of coil your vehicle has and if it’s meant to run at 12 volts or around 7 volts with a ballast resistor.
Once you know this, you can check the voltages and wiring as much as you want.
If you have a 12-volt coil then you don’t need a ballast resistor. So, you can remove that strange piece of plastic.