Heat sensor in the car engine and the most important faults
By sportcars - December 02, 2017
The heat sensor is a biometric sensor used by the control units. This sensor informs the electronic control unit in the vehicle by the engine temperature or cooling water temperature in the engine,
The car's computer is particularly sensitive to a range of engine operations such as:
- Fuel quantity control:
When the engine is working, it is cool to begin with. This sensor gives a signal to the car's computer to adjust the amount of fuel and make the combustion mixture rich in air and fuel, by increasing fuel spills to facilitate and improve engine performance
- Control the operation of the EGR valve
Basically, this valve is deactivated when the engine is cold, because its initial operation can affect engine speed.
- This sensitivity is a set of other functions, the most important of which are:
- Control the work of cooling fans
- Correct timing of primers
- Control of the fuel vapor control valve circuit. He has other functions that we will not address all of them in this subject and focus a little on the symptoms of malfunction on the car engine,
- When a crash or a problem you will notice these symptoms in your car Zhi:
First: Increase fuel consumption:
As noted above, this sensor gives a signal to the car that the engine is cool to increase fuel sprayer to help the engine to operate more efficiently. When it crashes it will give the computer that the engine is cool even if the engine temperature is high here will lead to high fuel consumption
Second: Exits black smoke from the exhaust:
When the sensor fails, as indicated in the first point, it will give signals that the engine is cold, which will make the car consume more fuel and may cause the difficulty of burning properly, resulting in black smoke.
Third: Refrigeration fans do not operate, also from the symptoms of heat dissipation or non-stop fan operation
Fourth: The difficulty of running the engine when it is cold.
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