HARDVIPER
Enthusiast
Been having some emmission problems. Took 6 different smogs finally passed. Thought the converter went bad but no? any guess????????????? 
Im in the same boat as you, but im almost POSITIVE its my 02 sensorsI removed my cats about 2 weeks ago and put about 250 miles on the car with no problems or CES lights. In traffic last week the light came on. Im going to have the car scanned just in case but it looks like ill have to get those 02 sims now.
Well I hate to admit this but my wife said it happened on her car she was told to try checking my gas cap to see it is on right, I laughed, but then I snuck in the garage and tried it now the light is OFF???????????I guess maybe I'll keep her, at least for a little while longer......
Im in the same boat as you, but im almost POSITIVE its my 02 sensorsI removed my cats about 2 weeks ago and put about 250 miles on the car with no problems or CES lights. In traffic last week the light came on. Im going to have the car scanned just in case but it looks like ill have to get those 02 sims now.
If you have a 99' (according to your sig) and did a cat delete without adding the sims, yep, thats your problem