Charlie -

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One of the most important things when wiring this up is to make sure the coil can not get power without whe processor and dizzy being powered.


That's why I wanted to wire it the first way I mentioned - key switch to coil (+) and tap that connection for "MS +12v switched" and "distributor optical sensor +12v". When the key switch is in ON or RUN position, the MS is activated, fuel pump is activated, coil is energized and distributor is ready. That's about as simple as I see it can be done. What am I missing other than the chance it might be electrically noisy?

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Run a separate power wire to the coil, same source is fine.


Where on the relay board would you suggest I pull power? What do you mean by "same source"?

Frank

'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum