I need to smog my car. The only problem is that the check engine light doesnt come on at all. When I got the car I noticed that and asked the guy selling it about it. He said it was because he had an off road x-pipe and had the cats turned off with his programmer. He smogged the car before he sold it to me and it passed. But even when I took the car home the check engine light still didnt turn on at all. So now 2 years later I need to smog it and it will not pass if the check engine doesnt turn on. I tryed turning the cats back on with the programmer and nothing. Do I have to drive the car after I do it? Only other thing I can think of is maybe theres no light blub in the dash.