I am moving the engine and transmission out of a 2013 Nissan Maxima into a 2012 Nissan Maxima. My question is about the electrical connectors. Almost all of the connectors connect up except the O2 sensors the wiring in the 2012 where I’m putting the engine Does not have the male side of the connector for the O2 sensor. Can anyone tell me how to connect the O2 sensors to the wire harness. I’m thinking I may have to buy new O2 sensors. For a 2012 engine so it’ll come with the correct connector for that model car.

 

Couldn't tell you if you need to get new 02 sensors or not but a quick trip to your local auto parts store to look at a new one will tell you.

 

get the connectors you need out of a junkyard and install them. o2 sensors are the same from 10-13.

the interchange list is too long for me to post here so do a bit of research to find out what vehicles you can pull from as im assuming from your post that youre missing the plugs on the engine harness to plug the o2 sensors in to.