I have a 2000 Toyota Camry V6 with a California emissions package. I am getting a P0155 error on my OBD tool. This is either a O2 Heated Oxygen Sensor or An A/F sensor. I get confusing information when I look this up on line. I, so far, have NOT been able to find a picture of exactly where this sensor lives so I can test it. My Haynes Repair manual is at best, not helpful. It does not even mention bank 2 sensor 1.
Can someone point me to, or provide me with a picture of where this thing is? I've got a bad feeling it is way up under the car but it might be marked in the picture below.