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 efficiently. The ECU receives input from sensors placed throughout the vehicle and makes real-time adjustments to optimize performance and fuel efficiency. Check Engine Light: A persistent check engine light could indicate a problem with the ECU, PCM, or ECM. Use a diagnostic tool ...

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 efficiently. The ECU receives input from sensors placed throughout the vehicle and makes real-time adjustments to optimize performance and fuel efficiency. Check Engine Light: A persistent check engine light could indicate a problem with the ECU, PCM, or ECM. Use a diagnostic tool ...