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International Automotive Technicians Network
Re: 1999 Ford Coil Primary Current Waveform Question
Posted to Technical Discussion Forum on 1/27/2004

Hi Jonathan,

You don't have a valid primary drive. The delay in currnt cut off slows the coil field collapse and prevents adequate induced EMF. Any coil needs only two things to work. You are missing one of them....clean current cut off.

Make sure no compo... Login to read more.