Megasquirt I dont understand how the coils are hooked up

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07-10-12, 11:36 PM

driftxsequence

Rotisserie Engine

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I dont understand how the coils are hooked up

I understand which colors go to which, but why is it taht only 3 wires are required for 4 spark plugs/wires? I assume this has to do with the wasted spark setting - but can someone explain how that works?

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07-11-12, 07:18 AM

muythaibxr

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The leading spark plugs fire at the same time off of one signal in wasted spark configuration. So one of the plugs fires into a compressed mixture and one into exhaust. Trailing is a coil per plug setup because it is positioned in such a way that wasted spark won't work.

Ken