Where the oxygen sensors go?

Hello,

This vehicle is equipped with three oxygen sensors.
Two of them are called upstream sensors, located one in each exhaust manifold. The third sensor is located after the catalytic converter in the exhaust pipe.
The oxygen sensors can be replaced easily using an appropriate socket. Keep in mind that due to heat, the sensors can be seized on the exhaust and can require you to spray penetrating oil to help them come loose.

Here are some helpful articles:

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

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.