My car is throwing an 1133 (which, thanks to the sticky thread listing the codes) I know is a problem with 02 sensor #1. The problem is, I don't know where that sensor is located - can someone please help me out?

BTW, love the site. I was having a problem with my radio, after reading some of the threads I learned I needed to replace my speakers (because of the crappy connectors on the OEM speakers).

Thanks

 

Unless you have an 06, you can look down the firewall and see the top (which I think is no.1) o2 sensor it's the thing with wires going to is screwed into the exhaust pipe just below the accordion looking flex portion. The other one is on the other side of the catalytic converter.

However, the "real" problem could be that flex pipe is cracked, or you have a bad exhaust gasket. In the cars that have 2 o2 sensors the computer compares the 02 before and after the cat, if you have a leak you get funny readings, and computers don't like funny.

 

 

Yes, sorry - it's an 06.

Thanks so much for the info!!

 

For my '09 2.2L, Rockauto lists four upstream (#1) sensors: Denso, APWI, Delco, and Bosch. Is there really much difference? Any recomendations?