The Engine Control Module (ECM) is the computer responsible for controlling the engine. The ECM communicates with other vehicle control units via a communication bus.

The power control module, aka PCM, manages the engine, transmission and other systems based on information it receives from various sensors around the vehicle.

Over 86% of the systems on today's vehicles integrate electronics and computer controls. Most people don’t realize how powerful the modern automotive Powertrain Control Module (PCM) really is ...

Although “ECU” typically stands for engine control unit, it could also mean electronic control unit. Here’s what those mean.

Consumer Reports explains what the check engine light means and what to do when you see it: how to tell if your car has a loose gas cap—or a serious engine problem.

During their final years, a handful of automakers experimented with computer control of the humble carb, trying to squeeze out every last bit of efficiency and reduce pollution as much as possible.