Claydus

Replaced Bank 2 Sensor 2 on my wife 2010 RX350 not too long ago. Paid $85 for a Denso O2 sensor from Amazon.

Easiest freaking sensor replacement EVER! Didn't even have to jack up the car. Sensor that went bad is so easily visible. Car passed emissions shortly after replacement and has been code free!

I was quoted $1,100 for parts and labor from Nalley Lexus in Alpharetta/Roswell GA area. This why I love being able to DIY stuff on this car.

Used this diagram from a thread here.
https://cimg5.ibsrv.net/gimg/www.clu...e6cc9357a4.png

afpj

What led you to changing it out? What CEL code did you get, did you see fuel trims off, or see voltage reported by O2 sensor off kilter? Inquiring minds want to know....Thanks!

Claydus

Pretty sure it was P0157. Low voltage for sensor. I think the wiring was exposed to the elements and had a short somewhere. I got under the car and moved the wiring slightly to inspect the sensor then i reset the computer. The code was cleared for about week.