The O2 sensor Bank 1 Sensor 2 on a Toyota Sienna is located after the catalytic converter on the driver's side of the vehicle. It is typically found along the exhaust system, near the rear of the engine. This sensor monitors the oxygen levels in the exhaust gases, helping to optimize fuel efficiency and emissions. Accessing it may require lifting the vehicle for better clearance.
passenger side
Bank 2 sensor 1 is the O2 sensor in the exhaust manifold closest to the firewall.Cut and paste the link below for a detailed fix with pics of the O2 sensor repair."http://polifrogblog.blogspot.com/2009/11/sienna-o2-sensor-change.html"
O2 sensor circuit malfunction (bank1 sensor 2)
Left side (drivers side) exhaust manifold. Between the exhaust manifold and catalytic converter
It depends on which sensor, O2/camshaft,etc. The O2 sensor is a straight metal sensor that is screwed into the exhaust. There is an upstream/bank1-sensor1 or down stream/bank1-sensor2 after the catalytic converter. A camshaft sensor is an L shaped, usually black sensor that is installed into the head closest to the firewall(bank1).
16518- P0134 O2 Sensor Circ.,Bank1-Sensor1 No Activity Detected 16519- P0135 O2 Sensor Heater Circ.,Bank1-Sensor1 Malfunction
its the O2 sensor on the driver side above the catalytic bank1 sensor 1 is the passenger side above the catalytic bank2 sensor 2 is O2 below catalytic on driver side bank1 sensor 2 is O2 below catalytic on Passenger side
That would be the O2 sensor after the catalytic converter.
O2 Sensor Stuck Lean (Bank1 Sensor1).
Where is the O2 sensor on 1993 Toyota Mr2
You probably put an O2 sensor where you should have an Air ratio sensor, they are different they only look similar but they are different internally.
Where is the o2 sensor on an o4 hyundai sonota 4cyl bank1 sensor2