Bank1 is the passenger side of the engine in your Lincoln LS ( V6 and V8 )
Sensor 1 would be close to the engine before the exhaust enters the catalytic converter
The bank 1 sensor 1 oxygen sensor on a 2002 Honda Accord is located on the header. It is right next to the sensor circuit.
Bank two sensor two on a 2002 Ram is passenger side, after the catalyst.
bank 1 sensor 1 2002 on toyots sienna
On a 1996 Lincoln Town Car : Bank 2 is the drivers side of the engine
Bank 2 is the drivers side of the engine in a 2002 Mercury Mountaineer Sensor 2 is after the catalytic converter ( downstream )
Oxygen Sensors are usually in the exaust pipes!
Bank 1 would be the passenger (right) side of engine. Bank 1 Sensor 2 would be the O2 sensor after the catalytic converter on the passenger side.
Bank 1 is where cylinder #1 is. Sensor 1 is ahead of the converter (usually in the manifold.
Replace it. Sensor 2 is the one AFTER the catalytic converter.
Oxygen sensor heater malfunction (cylinder bank #2, sensor #1)
It is caused by Bank 2 Sensor 2 oxygen sensor failing.
exhaust pipe