Cylinders 1,3, and 5, the sensor after the catalytic converter. Find the exhaust pipe coming from the front of the vehicle and follow it until you see the O2 sensor after the catalytic converter.
It is caused by Bank 2 Sensor 2 oxygen sensor failing.
Passenger side exhaust
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
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 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)
exhaust pipe
On a 2002 Ford Crown Victoria : Bank 2 is the drivers side of the engine Sensor 2 ( downstream sensor ) would be in the exhaust after the catalytic converter