Bank 2 is the side of the engine that faces the front of the vehicle, sensor 1 is the upper sensor, it is in the exhaust manifold
bank 1 sensor 1 2002 on toyots sienna
Code P1130 Means air/fuel sensor circuit range/performance (bank 1 sensor 1)
its is located downstream on the backside exhaust manifold
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"
Trouble code P0150 means:O2 sensor circuit malfunction (Bank 2 Sensor 1)
Trouble code P0153 means:O2 sensor circuit slow response (Bank 2 Sensor 1)
Trouble code P0153 means:O2 sensor circuit slow response (Bank 2 Sensor 1)
Bank 2 is the sensor opposite from the number one cylinder, and on your vehicle is the front of the engine. Sensor 1 is the first oxygen sensor you come to from the engine in the exhaust pipe.
On the exhaust pipe next to the firewall. This is the one you change for a OBD code P01135.
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.
On a Toyota Sienna, Bank 1 Sensor 2 is located on the exhaust system, specifically after the catalytic converter on the driver's side. This sensor monitors the exhaust gases to help manage emissions and fuel efficiency. To access it, you may need to lift the vehicle and possibly remove some underbody shields for better visibility and reach. Always consult the vehicle's service manual for precise locations and instructions.
Follow this link to Toyota Technical Service Buliletin for your answer. http://www.toyotapart.com/ENGINE_BANK_1_AND_BANK_2_A_F_AND_02_IDENTIFICATION_T-EG034-07.pdf