Nissan Repair: O2 Sensor, nissan quest, emmissions

Question
Hi,
   I've got a 95 Nissan Quest, I would like to know where an O2 Sensor is. I've located the easy one, there is two (one is  straight down standing in front of the vehicle just behind the radiator). People tell me I have to jack up the vehicle to find the other one. I've done that but I still can't find it. Does it look like the one near the radiator? Appreciate any help, THANKS !!!

Answer
Hi Patrick -

Yes, usually there are two, and both look the same. The second one is located after the catalytic converter. Reason for that is the computer needs to know what the emmissions are before and after the converter. Normally it is on the pipe facing upwards so it does not get hit.

Hope this helps -
aloha
calvin