It's the sensor under the passenger seat near your Y pipe. (The IS has 4 sensors.....3 near the engine, and this one) Unscrew it (VERY hard to get off) then cut the wires. Splice the wires from a new one, solder, heat shring wrap it, disconnect battery to reset ecu, and you are good to go.
It is a real pain. My suggestion is to take it to a shop.
To change the bank 1 sensor 2 O2 sensor on a Lexus IS300, first, ensure the vehicle is safely elevated and secured. Locate the sensor, which is typically found on the exhaust system downstream of the catalytic converter. Disconnect the electrical connector and use a wrench or O2 sensor socket to remove the old sensor. Install the new sensor, reconnect the electrical connector, and clear any diagnostic trouble codes if necessary.
In the Lexus IS300, the oxygen sensor for bank 2 sensor 2 is located on the exhaust system, specifically downstream of the catalytic converter on the passenger side of the vehicle. This sensor monitors the oxygen levels in the exhaust gases after they pass through the catalytic converter, helping to optimize engine performance and emissions. To access it, you may need to lift the vehicle and work from underneath, depending on the model year and any aftermarket modifications.
need change knock sensor 2 bank 2 in 2000 lexus rx300
Trouble code P0175 means:System too rich (Bank 2)
Trouble code P0430 means: Catalyst Efficiency Below Normal (Bank 2)
bank 2 sensor 1 is before catalytic converter
vvtls400
Passenger side exhaust
A/F Sensor for Bank 2 Sensor 1. It is the O2 sensor on the front manifold.
It is caused by Bank 2 Sensor 2 oxygen sensor failing.
In the gas tank