2007 Toyota Tundra P0031 P2195

So my truck's check engine light came on and I hooked up my cheapo code reader and pulled the codes.  The codes I got were P0031 and P2195, which appear to be for the bank 1 sensor 1 air fuel ratio sensor.  The bank 1 side is the same side as cylinder 1 on the engine, which is the driver side on my truck.  Sensor 1 is the sensor between the catalytic converter and the engine.  I got under the truck and easily located the sensor, I was very happy to see that it would be easy to change out.  The part I ordered for my Tundra was a Denso 234-9051 from amazon.com, cost me $115.  I swapped out the sensor, cleared the error codes, and everything seems to be working fine now.