What is the purpose of requiring a fixed dwell during cranking? It it to do what making the code stable or something like that?
My coils (GM D585) auto fire if they over charge. Cranking voltage is low, 10V but as so as the engine fires at all voltage jumps to over 12 mean dwell wants to go from 6.3ms to 4-8-5.0ms. I want a hot spark while cranking but looks like I need to short charge the coils to keep everything in spec ands know the coils won't spark at the wrong time. It's incredibly sup-optimal so I'm wondering what its purpose is and why it can't be turned off?