also, in case you've never done so, unplug either coil pack's main connector. one will cause the engine to never fire, the other will allow it to idle. the "no fire" on one is due to only one pack being used while cranking, it comes online once the engine is running.
anyways, with only one coilpack alive, you'll make about enough power to hit 40MPH and that's it. this system was designed around both being functional, if not, problems occur.
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