Mystery SOLVED! (I think)

Poking around again today, examining sensor and wiring harness. While harness exterior looks fine, nice and flexible, the wires inside have absolutely no insulation, it's turned to powder and comes sprinkling out the end of the harness when shaken...wow! Obviously, the harness is shorting out. Schedule to replace the harness next Friday, I'll let you know.

Thanks Again for all the guidance.

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RJ
'92 500E
'75 Triumph TR 6