Does a check-engine light really mean something is wrong with your engine? What you should do if yours comes on.

Here are our pro tips for diagnosing a check engine light. Head to your local auto parts store and rent an OBD2 scanner to see what’s what. The staff will also help you read the code.

A check engine light indicates problems with your vehicle's emissions system. While you can turn the CEL off yourself, that's not the whole story. The post How Do You Reset the Check Engine Light ...

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 ...

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.

Ignoring a check engine light might feel harmless if the car still runs smoothly, but the warning signals more than a mi ...

Your car's check engine light is a car's way of telling you something is wrong, so it should never be ignored.

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change.

CarMD, an automotive telematics company, published a list of the most common check engine codes in 2020, along with their estimated cost of repair.

While "Check Engine" and "Service Engine Soon" may sound like they indicate the same issues, they're actually for two different types of problems.