where is o2 sensor bank 1 sensor 2 located

Question

Where is this sensor located?

Answer 1

Bank 1 s where cylinder number 1 is located and being Sensor 2 this make it a downstream 02 sensor or catalytic monitor sensor which is after the catalyitc convertor.In this diagranm at the primary sensor Bank 1 Sensor 1 the 02 that is on the same bank but behind the catalyic convertor is Sensor 2