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International Automotive Technicians Network
Re: Ignition Coils and you electric gurus
Posted to Educators Forum on 5/12/2019

This I figure is due to the mechanical means of switching the coil. When the transistor shuts off, that's it, no more voltage flows, primary coil collapses and fires the coil.

Again, most of my sparking happened on my jumper to ground on the primary side of t... Login to read more.