To the best of my knowledge, the JB does not interface with the ignition coils AT ALL.
It intercepts the fuel injection pulses before it gets to the injectors and modifies the pulse duration to make the fuel richer by whatever amount you set (can't do leaner). That's all.
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Thats what i was understanding as well..... i really have no idea what the story is with this whole ordeal and i have thrown in the towel haha:banghead: