Originally Posted by eugopnosaj
Mine has a front, and a rear o2 sensor, its in the wiring diagram and if you google it it comes up on diagrams of the exhaust system
On further googling I found this:
Seems the front is 100% needed, but I can remove the one after the CAT when I take it out of the exhaust system.
Going to check my pinouts on the wiring incase it was missing, but when i stripped the car it deffo had one sensor and couldnt see a location for another. What fun.