OK, I found it. The wires are behind the front foot panel on the lower left hand side. I checked the signal and it's a really low value or no value,so now I've got my local parts guy checking his older 3 wire O2 sensor supply.

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Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.