Check Engine Light

The Check Engine Light, traction off, and VSC light randomly come as I am driving around, and sometimes it will be on, but the next day It will go off. What should I do? I have ran a diagnostics test and it states that the Fuel Emissions problem.

dont freak out, the traction and vsc light will come on whenever the computer sets a code from the engine, that means that your problem is the engine, or whaterver is setting the engine light on. check the codes and fix the engine problm. that will errase the other lights. if you dont have a hard code, you will have a pending code