That's where OBD-II scanners come in, giving enthusiasts and everyday drivers a window into their vehicle's diagnostic systems. If you're chasing down the cause of a check-engine light, ensuring peak ...

Harbor Freight sells four Maddox screen readers, from the $45 Maddox MR5 to the $249 Maddox MR16, with improved diagnostics ...

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?

We've all been there—that pesky check engine light pops up on your dashboard. Instantly, thoughts of expensive mechanic bills, weeks of it being repaired in the garage, and inconveniences galore flash ...

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 ...

For anyone who’s ever seen a check engine light appear and felt a wave of uncertainty, the ANCEL AD310 Classic Enhanced ...

Code readers are diagnostic tools that every car owner should consider owning. Having one of these is as important as carrying a spare tire or a fire extinguisher in the trunk. Back in the day, before ...

When I got my first performance vehicle (a 2000 Subaru Forester STI) the first thing I bought for it was an OBD-II code reader so I could monitor the sensor levels and pull codes in the event anything ...

In the Last diagnostics article, we outlined how to retrieve and decipher engine diagnostics for engines running OBD-I engine management computers. OBD or On Board Diagnostics is a subsystem of the ...

A journalist's experience with a check engine light and an outrageous $250 diagnostic fee reveals how a simple, affordable tool can save you from questionable auto shop practices and hundreds of ...