Where are the O2 sensors located?

Hi,

Bank 1 on the engine is on the driver's side of the vehicle. If you look below, I highlighted where bank 1 sensor 1, and sensor 2 are located.

Pic two shows the manufacturer's part numbers.

Here is a link that you may find helpful:

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Also, here is a link that explains how to check an O2 sensor:

https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.