Okay so I have checked the fuses and those are good. Just bought a new 02 Sensor and about to install it, but my check engine light just went off. So now am I still looking at a bad O2 sensor or a short somewhere? From the code error P0132 I know its the upstream sensor. Any help or ideas?

 

i just fixed same problem. yours could be differnt, but i took my old one out.. clean it off.. put it back in.. i found out that it was loose.. and i tightend it about a month ago. light went off, havent had problem sense

 

Thanks I'll be taking it apart here in about an hour and i'll tell you what i find.

 

So can these just be cleaned off?

Is it just a huge scam when they say to just spend $70 to replace one?

 

Well I personally couldnt tell if anything was wrong with mine but i replaced it anyways seeing as i have 197k on it. It might have been a loose wire but so far no check engine light.