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.
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
Trouble code P0135 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 1)
That is an oxygen sensor, it tells the computer how rich or lean the engine is running on bank 1. The computer uses this info to control how much fuel the engine gets.