bank 2 is the opposite side of cylinder #1. check the plugwires to see what side #1 cylinder is on and its the other side oxygen sensor
your bank 2 sensor is the o2 sensor on your passenger side exhaust manifold
the exhaust, where every o2 sensor is
Bank 2 is passenger side. O2 sensor 1 is threaded into the exhaust system between engine and catalytic converter.
o2 sensor Bank 2 sensor 2
bank 1 is drivers side down stream o2 / bank 2 is drivers side down stream o2
what year is the dodge ram? 1999 dodge ram 1500 has the bank 1 o2 sensor located right after the catalytic converter
A/F Sensor for Bank 2 Sensor 1. It is the O2 sensor on the front manifold.
That should be the O2 sensor just before the catalytic converter.
That is the O2 sensor in the pipe after the catalytic converter.
I believe it is before the catallytic converter.
P1131 = Insufficient switching O2 Bank 1 Sensor 1 Sensor/lean. Could be a B1 S1 O2 sensor going bad.
The bank 1, sensor 3, O2 sensor would be the O2 sensor post cat.