Men’s Journal aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. It’s something no driver wants to see: a check engine light ...

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 ...

Then plug in a diagnostic tool to your OBD2 port and find out what’s wrong—or at least narrow down the possibilities. If you’re not sure which OBD2 code reader to buy, we've found the perfect one for ...

Modern cars are basically computers on wheels. With so many electrical systems, sensors, and motors, there’s so much that could potentially go wrong. When something does go awry, pinpointing the ...

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 ...

“It’s nice knowing what’s wrong with the car before you bring it in for service.” Men’s Journal aims to feature only the best products and services. If you buy something via one of our links, we may ...