Is this bank 2 sensor 1 or sensor 2?
it is the rear sensor bank 1 (the one after the converter)
Inside the exhaust. there are two on each side.
on cylinder 1 side mounted on the manifold
It is behind the engine, after the catalyst.
bank one is where the number 1 cylinder is sensor 1 is before the cat and sensor 2 is after the cat
which sensor is for bank 1 sensor 1 on a 2006 nissan xterra
Bank 1 sensor 3 should be the one after the catalytic converter.
It's the sensor after the cat on the passenger side
It's on the back of the engine, left side. (O2 rear sensor)
Before the catalyst, driver side.
It is behind the catalytic converter
Bank one is the side of the engine with cylinder #1. Sensor 2 is after the catalytic converter.