If you've ever seen a port by your car's dashboard that can't charge your phone or provide auxiliary power from your vehicle's battery, there's a good chance that it is an OBD (On-Board Diagnostics) ...

That Check Engine light can mean so many different things, as can any noticeable difference in your car's performance or weird sounds. Fortunately, there are ways to narrow down the problem using ...

In the last Diagnostics episode, we outlined the vital information provided by compression and leakdown testing and illustrated how to use these most important tools. These tests reveal the internal ...

The year 1970 was a pivotal one for the U.S. auto industry. With new car designs already on the assembly lines, Congress threw automakers a curveball by passing the Clean Air Act and establishing the ...

On-board diagnostics, or OBD, is a system that is used to monitor and diagnose problems with a vehicle. It can be used to track things like fuel consumption, engine performance, and emissions. OBD ...

OBD II requires that a vehicle's computer system indicate when components have failed, resulting in the emission of pollutants at 1.5 times the accepted level. Another requirement of OBD II is that ...