Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

What Your Check Engine Light Means and What To Do About It Get yourself an OBD-II scan tool, the first step in diagnosing modern automotive troubles.

When that check engine light comes on, it can be the start of a long, hassle-filled ordeal. You can make it a little less expensive, though, by taking your car to an auto parts store and asking ...

A check-engine light could be a gentle reminder or a sign of something catastrophic. We explain what a malfunction indicator light is and what you can do about it.

Your check engine light can come on for a lot of different reasons, but there are only a few that occur after putting in gas. Here's what we know.

As someone who has spent years working in automotive diagnostics and maintenance, I've come across many instances of the check engine light illuminating either during routine maintenance or a few ...

The check engine light is your car’s way of alerting you that something's amiss — but it could be as minor as a loose gas cap, or more serious, like a faulty oxygen sensor. Repair costs for ...

What Your Check Engine Light Means When your check engine light turns on, one or more onboard diagnostic trouble codes are stored in the car’s computer.

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of the car as well.

Your check engine light can come on for a lot of different reasons, but there are only a few that occur after putting in gas. Here's what we know.