are you serious? ive heard of that. but never thought celicas were victims of it. thats the exact code that it would throw up under that emissions code? or just a guess on what might be kicking the CEL on?
Every car can fall victim to that.
Not tightning your gas cap is one of like 7 ways that you could receive this CEL. Hopefully, it's your problem, cause other causes would be costly to fix.