The “check engine” light is the most annoying orange icon in America. Half the time the car feels fine, and the other half ...

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?

In March 2022, within a broader-treatment post on automobile owners’ rights to repair their own vehicles, I briefly introduced the topic of the on-board diagnostics (OBD) port, used to monitor (and in ...

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 ...