Quote Originally Posted by Chris GTO TT View Post
When I was shopping for O2 Sensors I noticed that they changed over the years, my 91 had different O2 sensors than 92's so that may be why they are a little different. I couldn't really figure out what was different about them all I know is the O2 sensors were more expensive for my car than others lol.
3sx has a crapload of different models on their site. I'm not sure what the difference is. Did you get stock or aftermarket? I can get some bosch (I believe) ones by tomorrow and they are supposedly different from front to rear but it could just be the length of the wire or something.