jonthechron (who has unfortunately been inactive for 6 months) has published the
full wiring diagram and the crankshaft sensor has yellow and black/white cables going into the igniter. I don't want to look inside the igniter and reverse engineer what's going on there, so maybe I'll make the first project to figure out how to make a simple oscilloscope using the 10-bit analog-to-digital converters of our USB 32-Bit Whacker. If we're going to run temperature-, pressure-, lambda- and throttle-sensors, we'll eventually need to know how to use the underlying technology anyway, so this isn't a wasted effort.