Jacob’s ignition testing. Thanks to Newbomb Turk….

I used the above on a ‘94 (IIRC) Hyundai Excel 5spd manual.
It grabbed me more mileage but would turn the distributor cap into looking like a charred piece of wood. It would also destroy the rotor. This would happen every 13 months.

1st time was a surprise. Second time was lesson learned, exactly 13 months each time. Changed every year since then until I forgot and yep…. Noticed it was the 13 month marker.

This is one bad *** system. I know others have cursed it not working for them but, IMO, the MSD units, all but my first one, sucked *** and never worked for more than a few months at there best and there average worst is less than 6 weeks with the absolute worst being 6 starts.

Hummmm, a 1994 Jacob’s ignition system that still works or the heavy failure rate MSD??? Hummmmmm

The green wire goes to what they called “The Trigger Wire.”