what are the colored wires jobs for,for oxygen sensor for 1997 lumina other mechanic cut plug off and passed away leaving me with a mess.am installing o2 sensor from bosch and need to find the corrisp
Junkyard is most likely your best bet. Does the other O2 sensor have similar colors?
One is the power for the heater one for the heater ground and the other two are for power and signal output for the computer.
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