today after start the engine for about 10 minutes when i was waiting for a red light,the check engine light was on.i pulled over immediately,but nothing i can tell wrong.i drove to the dealer about 30km's away.the engineer checked the error code,but can not tell the problem.then he cleared the error code and told me if the light on again later,go see him.i hope it is not a problem,maybe just activate the light by accident.
