I've had my 06 Base 350Z for over a year now, moved from CA to CO, fought the snow and I'm now up against my first "Service Engine Soon" lite.

Took into the dealer and somehow, someway, the drivers side O2 wire(s) got cut. Service Tech was nice enough to show me, but now I'm facing a $350 O2 replacement on my own dime.

Before I could even ask, the tech stated that due to the sensitivity of the O2 data line, it couldn't be spliced or soldered. Thoughts? Need some options here. I'm away from my tools and floor jacks so it makes it difficult to do my own work this time.

Also, I'm really surprised at where these sensors are. One on each exhaust pipe, on either side of the tranny. The wires are unprotected from the elements (ie. rocks or whatever) and would seem to be easy to catch on anything that slips under the car. Poor design in my book, but that's just my opinion.

Any info appreciated.

 

I have just put solder on the O2 wires before on other cars and it has work very well. Try it and see what happens.... It would save you the $350 if it works, if it doesnt oh well you are out some coin!!!!!

 

I'd take it somewhere else and ask them to solder it. Or do it yourself, if you can get the car lifted (maybe borrow someone's jack, or go over to another enthusiast's house, etc)



If it gives you problems, you can always still replace it completely.

Your car (obviously) won't blow up in the mean time, the secondary O2 sensor you're likely talking about is just for emissions purposes.

So I think soldering would be the way to go. Also, make sure they use HEAT SHRINK TUBING, not ELECTRICAL TAPE, to make the repair.

 

I was able to get a hold of a Bosch direct replacement (with correct connectors) and swapped it myself. Total cost: $125, total time:20 minutes.

Now to watch the oil consumption threads...