A quick way to precisely diagnose myriad automotive problems—or at the very least get a rough idea of what might be wrong—is to use an automotive scan tool.

In this tech article we explain the sometimes daunting task of diagnosing problems in your EFI system-equipped late-model musclecar including how to read computer trouble codes with a diagnostic ...

Your vehicle's computer contains a wealth of information that it gathers from sensor on almost every system. It used to be that only shops had access to that information, but that's not ...

In this article, we’ll talk about oxygen sensors. We will explain what they are, give all symptoms of a faulty sensor and explain when you should replace it.

It is normal for this reading to vary a small amount. You can monitor and set the dwell reading using a scan tool connected to the underdash diagnostic connector Assembly Line Data Link (ALDL).

Oxygen sensors are not among the maintenance items that need to be replaced regularly, so they typically are replaced only when they fail.

Check out how to read OBD-II engine codes and learn what they all mean. Get all the details here in this month's issue of Turbo & High-Tech Performance.