Coolant temperature sensor function

Custom OEM Thermocouple Assemblies, Temperature Sensors , Call Today! Coolant Temperature Sensor Function. The coolant is designed to regulate the temperature of your car.

Your car is fitted with a coolant temperature sensor that keeps a check on the temperature of the coolant in the car. The main function of the temperature sensor is to make sure that the temperature of the coolant in the engine does not exceed a certain limit. It can help the control unit in your engine system to detect when the coolant is not functioning well and your vehicle is overheating. Input from the ( ECT ) sensor may be used by the PCM for any or all of the following control functions : Spark advance is often limited for emission purposes until the engine reaches normal operating temperature. This also affects engine performance and fuel economy.

Exhaust gas recirculation (EGR) during warm-up. Thus, principally, the coolant temperature sensor is a thermistor. The temperature of a thermistor influences its resistance in an inverse proportion. The tip of the CTS is probably located right next to the engine coolant.

This temperature sensor works by measuring the temperature that the thermostat or coolant is giving off. When the signal is sent to the ECM, the computer adjusts the vehicles ignition timing, fuel flow, and other factors that trim or enhance performance based on the coolant temperature. Information from the sensor is used by the computer to make adjustments to the fuel injection system, ignition timing and other engine components. Internal combustion engine cooling.

For small or special purpose engines, cooling using air from the atmosphere makes for a lightweight and relatively simple system. Watercraft can use water directly from the surrounding environment to cool their engines. For water-cooled engines on aircraft and surface vehicles,.

Innovative OEM Sensing Solutions. For Transportation, Healthcare, Industry. The resistance across it is about 10ohms with engine off at room temperature. When it comes to your Hyundai Elantra, you want parts and products from only trusted brands.

Depending on the sensor information, the control unit adapts the injection time and firing angle to the operating conditions. In this video Lauren explains how the coolant temperature sensor works. Although your ride is susceptible to extreme heat, an aftermarket coolant temperature sensor from AutoZone can subdue overheating issues, guaranteeing a safer and smoother trip to any destination. You can view our extensive selection of coolant temperature sensors at your local AutoZone. It helps the engine start up when the weather is cold and enhances smooth running of the engine.

It changes resistance with the temperature. The engine temperature sensor connects either to the temperature gauge or to the temperature indicator in the dashboard. A coolant temperature sensor is confined to the engine of a vehicle.

This device measures the temperature of the vehicle’s engine coolant. The sensor detects the temperature of this coolant and feeds this information back in the form of an electrical current to the engine control unit (ECU). You can also check the resistance of the fuel temp sensor and compare it to the old sensor. With the ignition on, one side gets about 5V and goes to the ecu, the other side is ground.

Also inspect for unusual wear or dirt in the injection pump area. The engine coolant temperature sensor reads the temperature of the coolant in one or more of these passages, and relays that information to the vehicle computer. The computer will send another signal to the engine temperature gauge, and alert the driver if the temperature exceeds the specified range for that vehicle. After the engine start, coolant temperature begins to rise.

ECT gradually heats and its resistance reduces proportionately. At ºC its resistance is in the range of 200ω to 300ω. A resistor, according to the temperature to change its output voltage value.

When the sensor temperature is reducethe resistance value will increases. When the Sensor temperature is rise the resistance value will decrease. The engine of coolant temperature sensor control computer can know the temperature.

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After reading this article you should be able to diagnose problems associated with this device as well as gain a better understanding about its function and what role it plays in the engine control system. Typically, the coolant temperature sensor is mounted in the engine block or cylinder hea near the thermostat or where the coolant flow is hottest. More than one coolant temperature sensor may be used on some systems to determine the temperature in different locations. The readings from this sensorare then fed back to the Engine control unit (ECU), which uses this data to adjust the fuel injection and ignition timing.

The importance of Precision in Demanding Applications. Unplug the electrical connection to the switch with your hands, revealing two posts on the sensor. Set the multimeter to the Ohm symbol for resistance.

Hold the black lead from the multimeter on one post of the switch and the red lead on the other.

Note the number on the multimeter, then remove the connections from the sensor. An engine coolant temperature sensor also described as an ECTS (electronic coolant temperature sensor ) is designed to tell the car's computer how hot the engine is running. In modern engines, computer controlled systems are employed. This information is then used to make fine adjustments to the operating system designed into the computer which will affect engine performance. It enables the control unit to give alerts if the engine is overheating.

It will also alert you for if the temperature within the system is rising for some reason. It tells the ECM what the temperature of the engine is (or at least the temperature of the coolant running thru the engine). In addition to these sensors, certain models use an additional coolant temperature sensor to control operation of the electric cooling fan. When a range of coolant temperature data is require a coolant temperature sensor is needed.

A common use for these data would be for a temperature gauge. Most coolant temperature sensors are thermistors, which change resistance according to temperature. An engine liquid cooling temp device will be removed and installed in this video.

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