How do you find the location of multiple oxygen sensors such as bank 1 sensor 2?

Answer 1

I can only tell what I know. From what I have been able to tell so far, Bank 1 will refer to the left side of the engine (the side with the number 1 Cylinder or all the odd numbered cylinders) wheras Bank 2 will refer to the right side of the engine (The side with even numbered cylinders) if the vehicle has dual exhaust or dual catalysts going into one muffler. Also what I have learned so far is that all the OBD-II codes will be standard across all vehicles until the number is > 1000 then it is manufacturer specific. If there is more than one cylinder per bank it means there are multiple sensors before the catalyst. Bank 1 sensor 1 should be one the exhaust manifold below the flange. Sensor 2 for bank one should also be before the catalyst. If this vehicle has a single exhaust then sensor 2 may be after the catalyst. Hope this helps, good luck.