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Depends on the installer. Tec is normally wasted spark with three re-stickered GM two post coils. I would pick up quantity 6 of 12v LEDs to test all injector outputs first. You'll need a helper to crank while you observe the LED fires in place of the injector. If still misfire and injector channels test out then I would check the matched cylinder on the wasted spark coil to ensure it is firing. If it is, swap the plug wire with #5 and try again.
If spark and fuel check out then I suspect a valve may not be behaving as intended.
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“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.”
― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values
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