Three wire O2 sensors have two wire for the sensor and one for power to pre-heat
the sensor, but I am not sure if it is full time power to heat or if it should
turn off. I know two wires are for the sensor because I use a three wire in my
Triumph TR3 to dial in the carb needles.
Jack Brooks
Hillsdale, NJ
1960 TR3A
1980 TR8
1974 Norton 850 Commando Roadster
Webmaster - NJ Triumph Association
http://www.njtriumphs.org
>
>Who has the correct wiring info for a heated O2 sensor? There are 3
>wires, I assume pos, neg, & sender, but the block could be ground.
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