I looked at the guidelines at http://forums.maxima.org/showpost.ph...&postcount=100 and I still have a few more questions about O2 sensor code P0158. I also looked at the TSB on this, NTB0251a.

Just wanted some verification or a link on the replacement procedure.
Some of the questions I have:
Do I need to disconnect the battery or handle this in a precautionary way since the code states "high voltage"?
Also, do I have to reset the ecu, and if so how do I do this? Unplug the battery for 24hrs?
Thanks in advance!!

 

unplug battery: yes
high voltage: if you consider 1 volt high, then by all means be careful
ECU reset: but of course, you must. for more info...search on that topic