Quote:
Originally Posted by dragoontwo
Using the MS2 Extra code you can control multiple coils directly for wasted spark.
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But from an electronics side, there aren't any transistors inside the megasquirt case that can handle the current from the coils (at least none devoted to that cause, there are the tip transistors, but they're for other electronics).
The issue isn't a control signal issue, it's an energy capacity one. Try to pass the full grounding force of the coil's inductor through the megasquirt main control chip is a recipe for bad mojo.
Hence the use of transistors (ignitor) especially oustide of the control box (because they flow a lot of energy, they create heat).
What you *can* do, if you have control of multiple coils, is just use the stock ignitor, because that's exaclty what it was designed for: Taking a logic-level input, and using it to control a power-level transistor (or darlington pair).