So I got a CEL on my 06 TL yesterday. Took it to Auto Zone and came back with P2243 showing oxygen sensor bank 1 sensor 1. Anyone know where the exact location of this sensor is so I can go ahead replace it myself? Maybe there's a diagram somewhere you guys may know of. Also, a friend told me I should go with Denso over Bosch?

 

anyone?? I just want to make sure I buy the correct one instead of guessing. ANy help would be greatly appreciated.

 

Bank 1 should be the rear bank by the fire wall and sensor 1 should be the one on top closest to the cylinder head.

 

^yup. it's obvous once you're looking at everything.

good luck!