o2 sensor location/explanation 1997 Yukon

[Jesse G]

I have found a really good schematic of the exhaust of my 1997 Yukon slt 5.7 4 door 4wd. I have marked it to show not only where the sensors are, but also the terms used for them. I hope this helps.

Ohh and the right and left sides are as if you are sitting in the car or standing behind the vehicle. Also the right side is the passenger side the the left is the drivers side.