> No one that I know of has been able to discern what the two pins on the = > front (clutch) side of the flywheel are for or if they are needed at = > all. For test equipment... my old 4k Bentley shows a Siemens 451 or VAG 1367 with a sensor which plugs into the side of the bellhousing. I'll bet it is sensing these pins. (It displays RPM, timing, dwell etc..) Orin.