#EngineControlUnit,

Performance tuning is the process of modifying a car to improve its performance, including its horsepower and torque. There are various ways to enhance a car's power and acceleration, ranging from simple modifications like changing the air filter or using high-performance tires to more complex upgrades like installing a turbocharger or supercharger.

The Powertrain Control Module (PCM) serves as the brain of your vehicle's engine, managing various functions to ensure optimal performance and efficiency. In this comprehensive guide, we'll explore everything you need to know about PCM, from its functions and components to common issues and troubleshooting tips.