The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

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 ...

Thanks to modern fuel injection, the engine computer has extremely precise control over the proportions of the air/fuel mixture inside the cylinders. A countless number of sensors around the car tell ...

️ Editor's note: This product category requires new testing about once a year. We'll update this article with the most recent information when it's available. Modern cars are technological marvels, ...

If you own a car built after 1996, it comes equipped with a second-generation onboard diagnostic (OBD or OBDII) system. These systems work together with the vehicle's primary computer or powertrain ...

As an experienced service advisor, I saw the P0420 “check engine” light code hundreds of times. This fault code indicates that your car’s catalyst system isn’t performing as efficiently as it should.

Abstract: To guarantee the accuracy and reliability of the measurement value of the diagnostic apparatus of On-Board Diagnostics (OBD) for motor vehicle emission inspection, and to enhance the ...

For individuals in search of a comprehensive automotive diagnostic solution, the XTOOL D5S stands out as a high-quality option. With its exceptional performance and user-friendly design, the D5S ...

The check engine light is both a friend and foe. For those who take their cars to the shop for repairs, it’s a symbol of impending treachery and rising credit card bills. But to those who shoulder the ...

Onboard diagnostics (OBD) systems have been around since the 1980s and were developed to help limit harmful automotive exhaust emissions. Between 1988 and 1995, U.S.-built vehicles came with what's ...

Micah is a 20-year authority in the automotive industry with extensive experience founded on marketing, events, and racing. His writing beats can be found in various online publications such as Car ...