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
In a 2002 Lexus RX 300, Sensor 1 Bank 1 refers to the upstream oxygen sensor located on the driver's side of the vehicle, before the catalytic converter. To replace it, first, ensure the engine is cool and disconnect the negative battery terminal. Then, locate the sensor, unplug the electrical connector, and use an oxygen sensor socket or wrench to unscrew it from the exhaust pipe. Install the new sensor by reversing these steps, ensuring it's securely tightened and the connector is reattached.
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