Not that it'* 100% accurate, but Autozone shows 2 oxygen sensors for the '95 SSEi, one before and one after the cat.

Edit - GM partsdirect shows just one part number 2531284, however.

Maybe the best way is to get under the car and look to see if there is another one behind the cat.

Thanks, Dick.

I was having trouble verifying it myself, so you may have bailed me out, lol.

Happy to help out and back up a fellow GH.

For what it'* worth. Advance showed upstream (before the cat) sensors, and the just universals from there. Autozone required upstream or downstream as part of the search, but the GMPartsDirect just listed one part number without reference as to where.

It was interesting at GMPD. Their site was being tempermental, but they had the 92-93 and 96-99 sensors listed under exhaust under the general exhaust category, and the 94-95 listed under emissions in the exhaust catergory. :?:

Funny you should mention that at GMPD, 'cause that'* one of the places I looked. I had the same tempermental problems you did with the site and noticed the same thing about the listings. While it appeared that they called for two different O2 sensors, it wasn't real clear. Certainly not clear enough to quote them.

The pricing is slightly off but I think this is what you we're referring to:

http://www.gmpartsdirect.com/results.cfm

I just tried the link and the page didn't come up....oh well the new pricing is GM PART # 25312184
CATEGORY: Computer Control Sensors
PACK QTY: 1 CORE CHARGE: $0.00
GM LIST: $80.92
OUR PRICE: $42.08
DESCRIPTION: OXYGEN SENSOR

Only full-OBD2 cars have the sensor after the cat, so this excludes all 95 Bonnevilles.

87-95 have only ONE. EVERY single year in some cases, that sensor part number changes. Check carefully and verify the part number.

Every Bville from 96 and newer has 2 O2'*.

Thanks for the info Will, either way I got this message when I went to order it from GM parts direct. "We currently only ship to U.*. postal street addresses. We do not ship to international addresses"
As I stated in a previous post................"Sucks to be me"
.

Uh-oh, time to replace mine, 128,xxx on a orginal o2 sensor

Check with Avenue Motorworks 1-800-567-7006 (ask for trade pricing) or Vaughan Automotive 905-738-2255. They both have good prices.

Is this the sensor? My dad says we don't need to replace it because he likes how the exhaust smells and it gets 'okay' milliage. Too bad its getting replaced.

http://i92.photobucket.com/albums/l3...e/DSCN1173.jpg