Seeing your vehicle's check-engine light come on can throw a wrench in your travel plans. It can also feel a little scary: Does it mean your ride is headed for the scrapyard? Or is there a simple fix?

OBD2 diagnostics apps that can run on Android devices have become quite popular lately, as they make it possible to check fault codes, access sensor information, and get an insane amount of details ...

The range of vehicle diagnostic tools available for mobile phones is expanding. We covered some upcoming models at last year's Specialty Equipment Manufacturers Association convention. Now PLX, one of ...

“Using this device has saved me from being overcharged at auto repair shops.” ...

That little yellow check-engine light is sneaky. Most of the time, you forget it could be there. But when it detects an issue, it illuminates menacingly. For many, the initial reaction might be to ...

In today’s society, it becomes more and more difficult to imagine life without driving. Whether you have to go to work in a different city, are taking a class far away from your house or you just want ...

This article was updated in November 2025 with new information. You know you’ve earned your DIY stripes when you can stay calm the moment something goes wrong. And with cars, that moment usually ...