Greg9

Thanks guys, it looks like I need to repair both the Bank 1 Sensor 1 and Bank 1 Sensor 2 OS Sensors. Is the B1S1 the upstream (left or Right) and the B1S2 the downstream (left or right)? I am looking to buy parts so my mechanic can install them so I want to make sure I buy the correct ones. Any help with what parts to buy is great appreciated. The error codes I have now are P2195 and P0138

Sorry forgot the picture

Scott, thanks so much. I opened the hood and I do see one right on top (like in this picture) and then it looks like another one may be down towards the bottom on the left. Which one would be bank 1 sensor 2?

One thing I forgot to mention is the car only has 48,000 miles on it.

I am hoping someone can help me out with this. I recently had the check engine and VSC light's lights come on on my 2007 RX350. The gas cap is confirmed tight so I took it to Autozone to read the computer for me. They got codes P2195 and P0138. They told me this is a bad O2 sensor in bank 1 sensor 2. Does anyone have a picture they can send me of where this O2 sensor is located so that I can attempt to fix this problem? I don't know all that much about cars but I can't imagine changing this could be all that difficult. The dealer wants $500 to fix this and I know the part is only $100 or so. I took a brief look at the exhaust system and could not locate anything that looked like a sensor. Thanks in advance for the help.