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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?

In the past, automotive diagnostic scanners were rather expensive. But today you can get a wireless interface for $10 online and use a multitude of apps to read codes, log, and monitor data in a wide ...

You're driving down the road, everything seemingly normal. Then, out of the corner of your eye, you see a light come on: the dreaded check-engine light. A lot of people just ignore it; after all, it's ...

We earn commissions from purchases you make using links in our articles. Learn more. If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just ...

OBD-II diagnostic device BlueDriver interprets engine error codes to suggest what might need fixing, and lets you know if your car is ready for a smog check. Wayne ...

Your car is basically a rolling computer network, and that little “check engine” light is the car begging you to read the ...

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 ...