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The role of the camshaft sensor

Update:28-06-2022
Summary:

The cam sensor, also known as the cam position sensor, […]

The cam sensor, also known as the cam position sensor, is a positioning sensing device for cylinder identification. If the camshaft sensor is damaged, what effect will it have on the car? It will cause the ignition to fail, making it difficult to start the engine, or the ECU cannot obtain the feedback information from the sensor, resulting in The control of the engine's intake and exhaust system is not normal and its performance is affected.
In addition, the damaged camshaft sensor will also cause the crankshaft to reverse when the car is started, resulting in the problem of backfire of the intake manifold. Moreover, if the ECU cannot obtain information, there will be a problem of disordered fuel injection, which will lead to increased fuel consumption. The vehicle may also experience severe vibration, similar to the lack of cylinders in the vehicle.
Generally, when the camshaft sensor fails, the engine fault light will detect it, and the fault indicator light on the vehicle dashboard will light up, reminding the owner to check and repair the vehicle in time.
When the device is in a normal state, the function of the camshaft sensor is to transmit it to the ECU electronic control unit according to the operation of the cylinder, so as to use the information to perform sequential fuel injection control, ignition timing control and detonation control. In addition, the camshaft sensor can act as an emergency ignition in the event of a crankshaft sensor failure.
The impact of a broken camshaft sensor on the car: it will cause misfire, make it difficult to start the engine, or the ECU cannot obtain the feedback information from the sensor, resulting in abnormal control of the engine intake and exhaust system and affecting its performance. It is recommended to replace with new parts.
The camshaft position sensor is a kind of sensing device, also called synchronous signal sensor. It is a cylinder discriminating and positioning device, which inputs the camshaft position signal to the ECU, which is the main control signal of ignition control.
The function of the camshaft sensor is to collect the camshaft moving angle signal and input it to the electronic control unit (ECU) in order to determine the ignition timing and fuel injection timing.
The function of the camshaft position sensor is to Cold shock camshaft blank collect the position signal of the valve camshaft and input it to the ECU, so that the ECU can identify the compression top dead center of cylinder 1, so as to perform sequential fuel injection control, ignition timing control and detonation control. In addition, the camshaft position signal is used to identify the moment of the first ignition when the engine is started. Because the camshaft position sensor can identify which cylinder piston is about to reach top dead center, it is called a cylinder identification sensor.
After the camshaft sensor is damaged, it may cause the timing of the car's engine to be inaccurate, and the inaccurate timing will lead to a decrease in fuel consumption. The camshaft sensor is the camshaft position sensor, which is very important.
Most car engines use double overhead camshafts. Double overhead camshaft engines have two camshafts, one that controls the intake valve and the other that controls the exhaust valve.
The camshaft is related to the valve timing, which is very important for the engine.
If the valve opens when it shouldn't, the upward-moving piston will hit the valve and cause serious damage to the engine.
If the valve timing is out of order, it may cause the engine power to drop or even fail to start.
Many car engines are equipped with variable valve lift systems or variable valve timing systems for power or fuel economy. These two systems also work through the control mechanism on the camshaft.
When the car engine is working, it needs to mix air and gasoline. After the air and gasoline are mixed, a flammable mixture will be formed, so the intake air is very important.
If there is a problem with the intake system, it will cause the engine to not work properly.
The camshaft is driven through the crankshaft, so there is also a position sensor on the crankshaft.
Some engines have a belt that connects the crankshaft to the camshaft, and some engines have a chain that connects the crankshaft to the camshaft.

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