Thanks Klaus. That number seemed to show up more often than the others. I guess because I have an old browser on my computer, the FCP site won't run. It will open, it just doesn't respond with any information. Unfortunately, my general computer knowledge is no better than my knowledge of computer operated cars.

I crawled under the car but couldn't see a number on it. It does seem odd to me that the rear O2 sensor is located in the front 6 inches or so of the cat instead of near the rear of it.

Charley