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Discussion Starter · #1 · (Edited)
While installing a aftermarket mid pipe the o2 sensor was seized into the o2 bung so instead of messing with it i cut the wires and now i need to splice them back together but i’m confuse on what black wire goes where since there is two
Blue = Signal
White = Ground
Black = Heater
Black = Heater
does it matter which black i wire to eachother?
 

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No, resistance wire heaters arent directional so doesnt matter which way you wire them.
 

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The heater would need a 20 ohm resister to fool the ECU. It would be easier to just buy a new O2 sensor and space it out with anti foulers.
 
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