I just got in my upstream O2 sensors and they are 5 wire not 4 wire....

Does anyone know if I can cut and splice these in and if so what to do with the 5th wire... tie it into 1, 2, etc. or kill the 5th?

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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course