Daily Driver, Go Where I Want To Build

The fuel pump ground is a direct line to the engine block that picks up several other grounds along the way. I found that out the old fashioned way. All switching is on the power side. I could have made a new ground on the body near the gas tank and solved this long term. By shear luck, this also would have bypassed the bad splice. But at the time nothing was making sense and the problem was inconsistent, so I kept looking for something in case this was the start of a even bigger problem.

Best to find the actual problem like you did.
 
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https://www.amazon.com/dp/B09WHQQZKR?tag=wranglerorg-20
It does the job for $20. I admittedly broke my rule of trying to buy good tools. But the decent quality one is a big price jump that I didn't want to make right now.
https://www.amazon.com/dp/B07ZCXLCXT?tag=wranglerorg-20

Those closed barrel crimps are cool. I've considered swapping over to Deutsch from my current Weatherpack stuff, but they've aways worked well enough and I have a ton of connectors and pins. There is definitely a difference in quality there. One day, though.

Good deal on the crimp tool if it is working well for you.

And good job finding the faulty ground, Josh - that's always a pain.
 
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And good job finding the faulty ground, Josh - that's always a pain.

Electrical quickly becomes really difficult when the problem is inconsistent and no pattern can be figured out to begin locating where the issue is. That was the discouraging part of this.
 
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Electrical quickly becomes really difficult when the problem is inconsistent and no pattern can be figured out to begin locating where the issue is. That was the discouraging part of this.
Discouraging = cubic hours of work. 😞 Great perseverance, jjvw! :)
 
I have been using the molex style butt splices where there is some strain relief on the wire insulation. Is this crimp method pretty secure?

Molex branded non insulated butt splices and parallel splices are elite. Anything with heatshrink pre applied to it is garbage.
 
Wrong term, I meant open barrel, sometimes called F crimp.

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