Located under the hood near the engine, the ECM is responsible for regulating the engine's performance, ensuring optimal fuel efficiency, and minimizing emissions.

The ECM collects data from various sensors located throughout the engine, such as the oxygen sensor, throttle position sensor, and mass airflow sensor. This data is constantly analyzed and processed by the ECM, which then adjusts factors such as fuel injection timing, air-fuel ratio, and ignition timing to ensure smooth operation and efficient performance.

One of the key functions of the ECM is to regulate the amount of fuel injected into the engine based on factors such as engine speed, load, and temperature. By continuously adjusting the fuel injection timing, the ECM ensures that the engine operates at its peak efficiency, maximizing power output while minimizing fuel consumption.

In addition to controlling fuel injection, the ECM also regulates the ignition timing of the engine. By adjusting the timing of the spark plugs, the ECM can optimize combustion and ensure smooth operation of the engine, preventing knock and increasing overall performance.

Furthermore, the ECM monitors the emissions output of the engine and adjusts various parameters to meet stringent environmental regulations. By controlling factors such as exhaust gas recirculation and fuel-air mixture, the ECM helps minimize harmful emissions and reduce the vehicle's impact on the environment.

Overall, the engine control module in the Lexus RX 350 is a highly sophisticated and essential component that plays a crucial role in regulating the performance, efficiency, and emissions of the vehicle's engine. Its advanced technology and precise control ensure a smooth and efficient driving experience for the driver, making it a key component in the overall operation of the vehicle.

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