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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,289
The primary voltage to the coil is not continuos like from a battery or wall outlet, it's real fast short duration capacitive discharge pulses so you can't measure it with a regular voltmeter.
I don't know what you would use to measure it, maybe an oscilliscope?

Most capacitive discharge ignitions supply the coils primary windings with around 450 volts or a little less. The coil is a step up transformer that increases that voltage in the secondary windings alot so it fires the plugs.
Old 05-30-2012, 05:57 PM
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