A sensor ECT refers to the Engine Coolant Temperature sensor.
The Engine Coolant Temperature (ECT) sensor is a crucial component in a vehicle's engine management system. Based on the provided reference, the ENGINE COOLANT TEMPERATURE SENSOR (ECT) general description is:
Understanding the ECT Sensor
The ECT sensor serves to measure the temperature of the engine coolant. This information is vital for the Engine Control Unit (ECU) to regulate various engine functions, such as fuel injection, ignition timing, and cooling fan operation.
Key Characteristics of the ECT Sensor
According to the reference, the ECT sensor is characterized as:
- A temperature-variable resistor.
- Usually having a negative temperature coefficient (meaning its resistance decreases as temperature increases).
- A two-wire thermistor.
- Immersed directly in the coolant to accurately measure its temperature.
Essentially, it's a simple electronic component that changes its electrical resistance based on how hot or cold the engine coolant is. The ECU reads this resistance value to determine the coolant's temperature.
This measurement allows the engine computer to optimize performance, fuel efficiency, and emissions by adjusting engine parameters based on whether the engine is cold, warming up, or at normal operating temperature.
