The ECM in the Toyota Camry is a sophisticated computer that is responsible for controlling the various systems within the vehicle, including the engine, transmission, and emissions control. It acts as the brain of the car, processing information from sensors throughout the vehicle and making adjustments as needed to ensure optimal performance and efficiency.

One of the key functions of the ECM is to monitor and adjust the fuel injection system. It constantly evaluates factors such as engine speed, throttle position, and air-fuel mixture to determine the best fuel injection timing and ensure smooth acceleration and power delivery. This helps to improve fuel efficiency and reduce emissions.

In addition to fuel injection control, the ECM also oversees the ignition timing, idle speed, and emissions control systems. It constantly monitors the performance of these systems and makes adjustments as needed to ensure the engine is running smoothly and efficiently.

The ECM is also equipped with diagnostics capabilities, allowing it to detect and store any faults or malfunctions within the vehicle's systems. This information can be accessed by a technician using a diagnostic tool, allowing for quick and accurate diagnosis and repair of any issues that may arise.

Overall, the engine control module in the 2021 Toyota Camry plays a crucial role in ensuring the vehicle's performance, efficiency, and reliability. It is a sophisticated piece of technology that is essential in modern cars, and without it, the vehicle would not be able to operate at its full potential.

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