The "check engine" light plays a big part in computerized auto diagnostics. Some people ignore their "check engine" light and think that it must be a problem with the sensor, as the vehicle is running fine. However, this kind of thinking can cause problems in the long run.

If your car's check engine light goes on, then that indicates a big problem with your vehicle, and you should take your car to a mechanic as soon as possible. Even if it is just a problem with the light, you still need to get the sensor repaired so you can identify when a real issue occurs