Our entire lives are run through — and directed by — our smartphones, so it only makes sense that your car’s diagnostics would live there, too. Thanks to Bluetooth technology, wireless OBD2 scanners ...

I’m going to start with a disclaimer: I am not mechanically inclined. I’ve tried to get hands-on with our cars in the past, but it’s seldom gone well. My latest bugaboo has been the check engine light ...