There's nothing worse than when you're driving to work or to the grocery store and all of a sudden, the check engine light comes on. This is one of the most dreadful lights that a car possesses. Not only does it signify that there's something wrong with your car, but it may also be a sign that if int's not taken care of properly, your car can be further damaged by it. So in this tutorial, you'll learn some basic reasons for why and what the check engine light means. Good luck!