Toyota 89429-47010 Sensor, Temperature

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In these vehicles, the Engine Coolant Temperature (ECT) sensor serves a dual purpose. It plays a crucial role in engine management by providing essential information to the Powertrain Control Module (PCM) regarding the coolant temperature. This data helps the PCM make critical decisions related to fuel delivery, ignition timing, and other engine parameters. Additionally, the ECT sensor also contributes to the accurate reading of the engine temperature on the instrument panel's temperature gauge. By monitoring the coolant temperature, the ECT sensor ensures that the driver receives real-time information about the engine's operating conditions, allowing for better monitoring and potential issue identification.