•Most motor vehicles manufactured after 1996 are equipped with electronic fuel injection. •As much as bad fuel may trigger the check engine through the lambda sensors, there's something else that ...

Neither black tape nor a magic marker is the solution when your car or truck's check-engine light comes on. When the light, which is shaped like the outline of an engine, illuminates, do not panic!

Question: I just bought a used 2002 Toyota Corolla, and the “check engine” light is on, which I took to mean there was a trouble code stored in the computer. The scanner gave me code P0420, which I ...

There's nothing more intimidating for many drivers than to find a warning error light appear on your vehicle dashboard. While some may be confident in their ability ...