The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

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?

Add Yahoo as a preferred source to see more of our stories on Google. Modern cars are technological marvels, and understanding what's happening under the hood has never been more important—or more ...

The check engine light is both a friend and foe. For those who take their cars to the shop for repairs, it’s a symbol of impending treachery and rising credit card bills. But to those who shoulder the ...

REVIEW – Back in the day, I used to work on my own cars but I gave it up as they became more computer than mechanical. My check engine light came on the other day so I decided to see if I could ...

Add Yahoo as a preferred source to see more of our stories on Google. What do you do when the 'Check Engine' light comes on in your car? A lot of people just ignore it; after all, that sensor is ...

We named this one of the best Bluetooth options in our recent comparison test because it takes the headache out of diagnostics in a compact device. It pairs deep scanning capabilities with an app that ...

The Actron PocketScan is a good entry-level OBD code reader for the driveway mechanic.Actron The primary purpose of the OBD-II connection is for emissions testing, but one of the first and most ...

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 ...

OBD-II is the standard diagnostics port in cars, and it's been that way for years. When did it replace OBD-I in motorcycles?