What is PCM? The Powertrain Control Module (PCM) is an advanced version of the ECU that not only controls the engine but also oversees the transmission, drivetrain, and other related systems. This integrated approach allows for better coordination and overall vehicle performance. The ECU is a vital component in modern vehicles that acts as the brain of the car's engine. It controls various functions, such as fuel injection, ignition timing, emissions, and more, to ensure the engine operates ...

Check engine light is illuminated Engine misfires or stalls Decreased fuel efficiency Irregular idling or acceleration Difficulty starting the car ...

Check engine light is illuminated Engine misfires or stalls Decreased fuel efficiency Irregular idling or acceleration Difficulty starting the car ...