I'm replacing all of the O2 sensors on my 2001 Maxima with 161k and CA emissions. Where's a good place to get them for a decent price? I purchased some off of carparts.com and only one worked. I don't want to get the wrong parts again. Any suggestions?

Thanks.

- Brian

 

RockAuto and Amazon if you can wait, and Advance Auto with discount codes if you can't. I think AutoZone price matches to RockAuto.

 

Might get a lot of hate for this. But I've ordered o2 sensors off eBay the cheap $17 kind and they turned out to be NTK's and had no issues.

 

I found a set of four 4-wire o2 sensors on ebay, but none of them are heated like the originals. Does that matter?

Also, does the calif spec emissions system take 4-wire o2 sensors? I don't have the car here with me to check.

 

Well, I went ahead and ordered two downstream that were heated and 4w. Hope they're the right ones. I managed to get the correct left upstream one in my first order, but I can't seem to find the second upstream o2 sensor. Oh well...hopefully I'll find it.

 

Fwiw i tell yall the Japs used Bosch o2 sensors

 

Yeah, those are good quality, but I'm going for cheap and passable. lol