I was wondering if someone can help me or describe to me how and where the oxygen sensor is located? And is it easy to change it?

 

Assuming your talking about the upstream one it is pretty simple. Going to need an 02 socket or a wrench (7/8''s). But on passenger side you will see the headers and about a ft back by the cat you will see the 02 sensor. Remove and replace. But I just did this on mine and got the bosch universal 02 sensor for $70 and removed the old and had the new one wired up and put back in 20-25 min max and was very simple.

 

Thanks, it was a quick change

 

Is that the sensor that crews in toward the back of the exhaust manifold?