On a 2004 GMC Denali, Bank 2 Sensor 2 is located on the passenger side of the vehicle, after the catalytic converter. This sensor monitors the oxygen levels in the exhaust gases to help manage fuel efficiency and emissions. To access it, you may need to lift the vehicle and possibly remove some undercarriage components for better visibility.
Bank 2 Sensor 2 is passanger side after cat.
Usually bank 2 sensor 1 & 2 are right after the converter in the exhaust pipe.
That is passenger side after the catalyst.
Bank 2 is on the passenger side of the vehicle. Sensor 2 is down stream ( behind ) the catalytic converter. Second sensor from the manifold. May have 4 sensors.
The rear cylinders are 1-3-5 so that is bank 1. Front cylinders are 2-4-6 so that is bank 2. Follow the exhaust pipe from bank 2 and you will find the O2 sensor.
the bank 2 is on the driver side i got this info from an Isuzu mechanic
Oxygen sensor bank 2 (pass side) sensor 2 ( after cat) circuit
Bank # 1 is the passenger side of the engine Bank # 1 , SENSOR # 1 , is close to the engine in the exhaust Bank # 1 , SENSOR # 2 , is in the exhaust after the catalytic converter ( downstream )
Bank 2 is the drivers side of the engine on your 2004 Ford F-150 Sensor 1 would be in the exhaust before the catalytic converter ( upstream ) Sensor 2 would be in the exhaust after the catalytic converter ( downstream )
P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
Bank 1 sensor 1 is upstream bank 1 sensor 2 is downstream
Drivers side post cat converter. If there is are misfire codes highly recomend replacing the plugs but at this point the cats may be damged anyways.