Check engine light on? The check engine lamp is there to notify you that your vehicle has a problem and to drive with it on can lead to other problems because one system is working harder to offset the original issue which in turn will cause more damage and cost even more when the time comes to have it repaired for your N.Y.S.I. many people go to your local auto parts store to get their free check engine light scan which gives you a general idea of what it might be. We offer the same free check engine light scan and our techs will be able to tell you exactly what is wrong and what it's going to take to correct it without repalcing part after part so if you want to save time and money stop by for your free check engine light scan no appointment needed. please call us at 716-681-2662 or my cell at 716-308-7111 name is don. thank you and have a greta day today...