i was under the impression that o2 sensors now days are heated ones, and they were all standardized with 4 wires ? well, up to 08 or so anyway. what would the 5th wire do ?
No clue... when I worked with O2s they were 1 wire, 3 wires then 4 wires... but this has a total of 7 wires but 2 brown wires are jumped together... the other 5 are(what I will call.. live)... I will look today to see if all 5 go into the O2 itself... like you say all I've seen for a long time are 4 wires(heated)
