My CEL light came on also but i figured out it was the O2 sensor. It fell off lol so i got to go replace it. Cost me $153.18 i belive to replace it. I tried taking the battery connection out to restart but light still comes on so i guess i have to go buy it.

 

Doh! Did you buy the sensor already?

 

Naw i haven't bought the sensor yet i really don't need it do you think??? Not going to do that much harm to my car will it? But i will buy it soon if you guys say i need it!

 

The warr for A/F sensor is 4 years 50k miles. The cat is totally different though.
JPI