Your check engine light can come on a host of reasons, ranging from a loose gas cap to a faulty engine component. If you see a light illuminated on your dashboard, you can use an OBD2 scanner to ...

Plug in all the things.

A basic OBD scanner can help check a used car, but it cannot reliably prove that the odometer reading is genuine.

The video explains the downsides of going to the dealership for car repair, citing extra fees. Instead, try using a car scanner to check the check engine light yourself. Many auto parts stores offer ...