I replaced my Made in Japan coil 3 years ago for a new coil that was made in China, only because I thought it would be a good preventative maintenance idea.
Jeep started breaking down a few months ago intermittently.
I tried various things and it was still breaking down with no codes.
Swapped the Japanese coil back in and she has run sweet ever since.
It is a bit of a pain with the stock setup, and they do get hot. I have another new spare coil from a Japanese manufacturer, but it has made in China on it!
Cheers,
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'95 XJ I6 4.0 AW4 NP242,
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