5 pin module question

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dusterdude

dusterdude

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What did the 5th pin wire to that the 4 pin module didn't?

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AuroraGirl

AuroraGirl

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Electronic spark control?
 
dusterdude

dusterdude

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mark
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gmc c15
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Good question,the internet isn't much help at all.I can find wiring diagrams for 4 pins all day

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