Does anybody know the pin out or have a wiring diagram for the rear O2 sensor? My wires were cut and I want to make sure I got them connected right. There are 4, White, Blue, and 2 Black. The White and Blue are a no brainer but the 2 blacks threw me off. There is no difference in the insulation on these 2 wires, color markings, stripes...etc. I am not sure if it matters if the 2 black wires are wired up differently. Is this just a 2 wire resistance sensor such as a thermistor? If so it doesn't matter but if one is ground and the other is something else, I probably should make sure I got it connected right. If anyone has a picture of the O2 sensor with the white shield cut off so you can see the top of the sensor and follow the wires up to the wire harness where it connects by the transmission, could you pass it along to me?
This is for an 02 WRX Wagon