The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

From spotting a loose gas cap to uncovering hidden engine troubles, OBD-II scanners have changed how we diagnose and maintain our cars. These compact tools read fault codes from your car’s computer, ...

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 ...