Got a check engine light? Trying to run a diagnostics check but you're still wondering what those OBD 1 codes mean? Check out what engine codes your ECU may throw out and what they mean. Get all ...

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

OBD-II is the standard diagnostics port in cars, and it's been that way for years. When did it replace OBD-I in motorcycles? Which one does your bike have?

If your vehicle is throwing a check engine light, but you don't have a diagnostic scanner handy, here are three tricks to try before seeing a mechanic.

An OBD II system can be so sensitive to changes in engine performance that the addition of some aftermarket equipment causes the system to operate outside of those very tight operating limits.

We recently got our hands on the new GoTech mobile OBD-II diagnostic tool and put it through its paces on several trucks in our fleet. The GoTech is more than just a code reader, though.

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 ...