Rangy35 Posted September 15, 2014 Share Posted September 15, 2014 Was not sure where to put this, but because I am struggling with a Disco2 I thought I would ask the question here. Does anybody know what the wiring schematic is for the four wires on the oxygen sensor side. I bought two new ones thinking there was a problem with them but have second thoughts that the wires are not in the proper locations on the sensor side. There is two white wires one black and one grey, so I would like to know if anybody knows what the wires are for on the sensor side eg, black is earth, grey power for heater, etc I have tried to search the net, but think the key words I am trying is not working. Thanx in advance. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted September 15, 2014 Share Posted September 15, 2014 Two whites are a 12v heating element, not polarity sensitive. Grey & black are signal & ground, usually grey is ground just to confuse you, but not always. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 15, 2014 Share Posted September 15, 2014 Quote Link to comment Share on other sites More sharing options...
Rangy35 Posted September 16, 2014 Author Share Posted September 16, 2014 Thank you very very much. Quote Link to comment Share on other sites More sharing options...
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