Unleash the Power Bank 2 Sensor 1 for Thrilling Driving Experiences

Sensor 1 went hard into lean and sensor 2 into rich with bank 1 fuel trim going to 20%. Bank 2 operates normally. When I turn off the igintion and start again ... Generally bank 1 and 2 will use the same type of O2 sensor so the computer is seeing apples to apples readings, but as others have mentioned ... Bank 2 Sensor 1 is located on the Front of the engine, Before the catalyst, it should be visible from under the hood, and lucky you, it should be the easiest ... Today we are changing the bank 1 sensor 1 only. However, I highly recommend changing both BANK 1 and BANK 2 sensor 1's at the same time. A couple of the ... Bank 2 is closest to the front bumper. Sensor 1 is before(on top) of the catalytic converter. very easy to get to good luck. I bought an 03 rav4 but it has one last code a p1150 for bank 2 sensor 1. I've changed the sensor itself but the code still persists. Bank 1 sensor one is going to be the side of the motor that cylinders number 1,3 and 5 is located at, Bank 2 sensor 1 is going to be the side cylinder numbers ... Buy the 02 sensor tool. It's only a few bucks and won't strip the sensor like an open end wrench. Run the engine to heat it up. It'll easily break free. Now I have a P0420 code that is sticking around, and unfortunately means that I probably need to replace the bank 1 cat. I've taken temperature ... OK, so when I get an error code on Bank 2 Sensor 1, is this the before or after O2 sensor?