Just out of curiosity, can the 3 wire O2 sensor be used on a 5M? I would like to be able to use it if I foul my stock sensor up while adjusting my AFM (because of putting in 295cc injectors).
So I could just leave the other 2 wires unhooked correct?
The only reason I am asking is because if I foul my current sensor I have a 3 wire I got on the turbow elbow. Otherwise I would just get a cheap bosch replacement as suggested.
Well, I tried to hook up the 2 black wires on the MKIII O2 sensor. I just went straight to the battery for testing. I figured I would get a little spark but I didnt see any. Also didnt seem to heat the O2 sensor up any.
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