Yeah, so, Fab9 replaced their utterly destroyed trigger wheel for free and I happily went about installing their replacement solely to restore driveability. ... I really didn't learn my lesson.
Less than 72 hours later I was on the side of the freeway yet again, waiting on a different tow truck for the exact same reason: dead trigger wheel.
Ever wondered what a dying trigger wheel looks like in MegaSquirt? Wobbly RPM readings, a ~7800rpm shift from 4th to 5th, 0.6 seconds of throttle, and BAM ... dead.
One of these is a solid design, while two are not.
The damage was extensive, and this time the sensor did not make it out alive.