Before I figured out how to work on cars, onboard computer systems scared me. I’ve had no formal training, after all, so the idea of a car’s complex electricals and countless sensors made DIY work ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Since the mandate of the OBD-II port in 1996, auto mechanics have accessed vital information about your ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Modern cars are technological marvels, and understanding what’s happening under the hood has never been ...

If you've been involved in automotive repair for a while, you probably know that modern vehicles use onboard diagnostic (OBD) systems to help notify us when there's a problem. The OBD system works ...

Harbor Freight is known for its wide selection of tools, hardware, equipment, and nearly anything pros or DIYers can imagine. One notable offering is the company's Maddox screen code reader, which ...

Every serious gearhead knows that the right USB gadget can turn a cluttered garage into a smart, efficient workshop. From ...