A check engine lamp is more than just an obstacle for annual inspection; it is triggered by the car's computer when it detects that a component is not working to it's full capability (or sometimes at all). When certain emissions components fail to do their intended job your car and the environment can be harmed. No job is too big or too small at South End Auto; whether it be oxygen sensors, spark plugs, air filters, or catalytic converters. Let's keep your car running efficiently, economically, and clean for years to come.