Oxygen Sensor

[Bravo_Zulu]

My truck is throwing O2 codes and I am looking at ordering new sensors. What is the difference between upstream left and upstream right? And which one does my 96 5.2 need?

 

[dodge dude94]

You only need one upstream, so whatever you're looking at is weird. Unless you have Cali-emissions, that is, and even then I don't know if the Cali trucks had two O2s.

 

[Bravo_Zulu]

additional info

Thanks, I looked underneath and there is only one. Also figured out why it's throwing a code, the top is broken off lol. I also found a random vacuum line coming from the top of the transmission with a metal fixture on the end with a mounting hole that is disconnected, no idea what that ran to...