I've searched quite a bit but I'm unsure if I can do the following so I wanted some input from the community.

Is it possible to replace my 03 Z's o2 (rear) narrow band sensors with that of a newer (wideband)Z's o2 sensors?

The reason I'm asking this is because I ordered Osiris and I just found out that I need wideband o2 sensors and I rather not mess with the wiring of the car but if its not possible then I might just have to do it.

Thanks for any input.

 

Wondering the same exact thing lol. I want to do this for tuning purposes. Any insight with be appreciated

 

You would need to swap out for an ECU that has provisions for a wideband. I suppose it's possible that the '03 ECU has the capability, but I'm almost certain the ECU harness for a wideband connection would be different. Also, widebands are always the primary O2 sensor, not the secondary, since you want your true AFR reading before the cat converter.

 

^this

also nissan only ran 4 wires to each rear sensor. widebands are a minimum of 5.

 

The controller can put out a simulated narrowband signal(0-1v) to the ecu and you can use the wideband for a gauge/logging as you normally would.

 

What is this "controller" you speak of?

 

There is no controller that will output the ecu's oem readings.

This is why osiris falls short. You have to purchase everything separate: widebands and boost controller.

Word has it innovate widebands (lc1) can be recorded in the same program as osiris now so at least you can log it with the rest of your stuff unlike when I used to have osiris.