In the case of the 2021 Toyota Camry, the ECM plays a key role in controlling various functions of the engine to ensure optimal performance, efficiency, and emissions compliance.

The ECM in the Toyota Camry is a sophisticated computer that constantly monitors and adjusts a multitude of parameters to maintain smooth operation of the engine. It receives input from various sensors throughout the vehicle, such as the throttle position sensor, oxygen sensor, and mass airflow sensor, allowing it to make real-time adjustments to fuel injection, ignition timing, and other critical functions.

One of the main functions of the ECM is to manage the air-fuel mixture to ensure efficient combustion and minimize emissions. By closely monitoring the oxygen sensor readings, the ECM can adjust the amount of fuel injected into the cylinders to achieve the ideal air-fuel ratio. This not only improves fuel efficiency but also reduces harmful emissions, making the Toyota Camry more eco-friendly.

Additionally, the ECM is responsible for controlling the timing of the ignition system, ensuring that the spark plugs fire at the precise moment for optimal engine performance. It also monitors engine temperature, oil pressure, and other vital parameters to prevent damage or overheating.

Overall, the engine control module in the Toyota Camry is a highly sophisticated component that plays a critical role in the overall performance and efficiency of the vehicle. Its ability to constantly monitor and adjust engine functions in real-time ensures smooth operation and reliability, making it an essential part of the Camry's drivetrain.

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