A coolant temperature sensor, or CTS, is a tool utilized in inside combustion engines to measure the temperature of the engine coolant. This info is then utilized by the engine’s digital management unit (ECU) to regulate the engine’s air-fuel ratio, ignition timing, and different parameters to make sure optimum efficiency and gas financial system. A defective CTS can result in a wide range of issues, together with engine overheating, poor gas financial system, and even engine harm.
There are two most important varieties of CTSs: analog and digital. Analog CTSs use a variable resistor to measure the temperature of the coolant, whereas digital CTSs use a thermistor. Thermistors are semiconductor units that change their resistance in response to modifications in temperature. Each varieties of CTSs are sometimes positioned within the engine’s cylinder head or consumption manifold.