not sure yet where the crank signal comes from, I assume the distributor, but not 100% sure. Typically MAF will respond better to slight modifications than SD once a tune is created. it's a buddies car, and the stock ECU's aren't tuneable, there's some kind of hack job piggyback thing on it now, and it would be nice to delete all of that and have an ECM control it strait up.
what real benefit would he see going SD? just more accurate fueling/spark control?
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