When the check-engine light snaps on, it is not a suggestion, it is your car’s way of saying something in the powertrain or ...

In the January issue, we discussed the history of OBD. This time we are going to investigate some of the technology required to meet OBD II standards. To give an idea of the magnitude of technological ...

OK, so imagine, you're four-wheelin' with a bunch of friends in Baja, or maybe you're halfway into some backroad in Canada. After a beautiful camp, 50 miles from the nearest light bulb, you pack up ...

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?

I'm looking at buying a TPMS reset tool, but I don't mind paying more to get a decent OBDII/etc tool for doing various resets or WTF on the car.

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology. A check engine light can mean serious engine trouble, such ...