'98 Ford Expedition Misfire

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Posted to Technical Discussion Forum on 5/6/2002 7 Replies

Hi all,

I have here a 1998 Ford Expedition with intermittent misfire. When presented it had a P0304 DTC and misfire was obvious. I scoped the primary voltage and got these waveforms.

[1998 Ford Expedition, Ignition - Primary Waveform]

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