PSA: M42 crankshaft sensor

[E30SPDFRK]

Been going through this on a car recently, and there seems to be no one talking about it on the internet. I wanted to make a PSA for anyone out there before they too run in circles.

Somewhere...

[E30SPDFRK]

Restoring an M42 currently, its getting tough out there for the M42 crowd. Half the parts have had to come from BMW because aftermarket either isn't available, or is just incorrect.