The oxygen sensor on any vehicle is located on under the car on the top of the muffler pipe just behind the cadallidic converter....do you know what the oxygen sensor looks like so you know what you're looking for?
You can find it in the exhaust manifold. There is only one sensor over there. Sometimes the sensor is called oxygen sensor because on some Camry models at the same location the oxygen sensor is installed. Most of camries have oxygen sensor.
www.autozone.com has a component locator that you can use. Fill in the information about your vehicle, go to the component locator and click on Oxygen Sensor. I have a 1997 Suburban and it identified the location of each of 4 sensors.
The vehicle speed sensor for your speedometer is on your transmission for 2 wheel drive, and on your transfer case for the 4 wheel drive. If it is on a AWD (All Wheel Drive) there is no source that I can find to give this location.
I'M NOT A MECHANIC but if I'm reading this right it is a heated oxygen sensor , (bank 2 , sensor 1 ?) Which would be the heated oxygen sensor on the driver's side of the engine , either screwed into the exhaust manifold or into the exhaust pipe near the engine. (Helpfull)