The ECM serves as the brain of the engine, continuously monitoring and controlling various functions to ensure optimum fuel efficiency, emissions, and overall engine performance.

The ECM is a sophisticated piece of technology that is responsible for controlling vital functions such as ignition timing, fuel injection, and emission control systems. By constantly monitoring data from various sensors throughout the vehicle, the ECM is able to make real-time adjustments to ensure that the engine is running at peak efficiency.

One of the key functions of the ECM is to adjust the air-fuel mixture ratio based on factors such as engine temperature, altitude, and driving conditions. This ensures that the engine is always running at the optimal air-fuel ratio for maximum power and fuel efficiency.

In addition to controlling the air-fuel mixture, the ECM also plays a crucial role in controlling ignition timing. By adjusting the timing of the spark plugs, the ECM is able to optimize engine performance and reduce emissions.

The ECM also continuously monitors the emissions control systems in the vehicle, ensuring that they are operating within legal limits. In the event of a malfunction, the ECM is able to pinpoint the issue and trigger a warning light on the dashboard to alert the driver.

Overall, the engine control module in the 2021 Toyota Camry is a sophisticated piece of technology that plays a crucial role in ensuring that the engine is running at peak performance. By constantly monitoring and adjusting various engine functions, the ECM helps to optimize fuel efficiency, reduce emissions, and enhance overall engine performance.

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