O2 sensor wiring
07-31-05, 10:57 AM
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O2 sensor wiring
Ok I searched and this question is not covered. I replaced my sensor with the universal one from autozone and when I plugged in the wire to the harness I noticed a copper braided ground wire in the harness side that was not hooked up to anything. Where does it go and what happens when it is not hooked up?
07-31-05, 03:34 PM
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The shield terminates about six to ten inches from the ECU plug. It ties in with a black, pure black wire. That's the way I remember it. It does nothing for the 02 sensor reading except act as a rf shield. The 02 voltage is miniscule, as in milivolts being PRODUCED by the 02 sensor itself. Small voltgags like that are easily interferred with by outside sources. Like that heater/ac fan over there in the corner.
Last edited by HAILERS; 07-31-05 at 03:42 PM.
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