Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The check engine light by its nature is vague, just a general indication that ...

️ Editor's note: This product category requires new testing about once a year. We'll update this article with the most recent information when it's available. Modern cars are technological marvels, ...

There was a time that I’d walk into the service department at a car dealership and they’d either recognize me or my car from the magazine I worked for. They’d make small talk about the last issue they ...

Q: You have mentioned a scan tool that was not overly expensive but bordered on something a professional would use. What kind was it? When I look online, there are many to choose from. A: Innova ...

If you own a car built after 1996, it comes equipped with a second-generation onboard diagnostic (OBD or OBDII) system. These systems work together with the vehicle's primary computer or powertrain ...

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 ...