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Engine sensor failure may be Trade data for metal commoditiesthe culprit of your car. The car engine sensor is a very important part. It can detect the status information of the car engine and then transmit this information to the engine controller, which will send according to this information. The adjustment of various parameters of the motive makes the engine run in the best state. However, car owners often report that the car has abnormal start-up, low fuel consumption, engine shaking, difficulty in acceleration and other problems. One of the reasons for these problems is the failure of the engine sensor. This article will introduce the functions and common faults of engine sensors, and provide some ways to solve faults, hoping to solve the problem for you. I. The function of the engine sensor. The engine sensor is a kind of signal by sensing the engine status.The equipment measures the physical performance of the vehicle and converts it into a signal and sends it to the electronic control module. The control module makes corresponding data analysis and decision-making, so as to achieve precise control of the engine to achieve the best efficiency and performance. The commonly used engine sensors are as follows: 1. Oxygen sensor: Monitor the amount of oxygen emitted by the car, so as to adjust the oil-gas ratio of the fuel system to maintain the ideal ignition timing and reduce pollution emissions. Two. Oil pressure sensor: It can sense changes in oil pressure and convert it into electrical signals. The oil line of the engine can be reasonably controlled through the electrical controller to ensure the normal oil pressure circulation. 3. Inlet temperature sensor: measure the mass per liter of air, so as to measure the air temperature to adjust the mixing ratio of fuel and keep the engine working in a good state.Four. Throttle position sensor: usually installed on the throttle valve, which is responsible for monitoring and adjusting the opening angle of the throat and sending it to the engine controller to adjust the throttle valve opening of the engine to achieve better performance. 5. Crankshaft position sensor: Record the speed and position of the crankshaft in order to control the timing of the engine's fuel system and ignition system to ensure accurate timing and normal operation. II. Common fault signals and solutions 1. Fault signals: engine difficulty in starting, unstable idle speed, weak acceleration. Solution: The failure of the crankshaft position sensor may be the main reason for these problems. The crankshaft position sensor is usually installed on the engine, with high accuracy and stability. If these fault signals are found, you can usually try to clean or replace the crankshaft position sensor to solve the problem.Two. Fault signals: engine vibration, stall, high fuel consumption. Solution: If these fault signals appear, they are usually caused by the failure of the oxygen sensor. Oxygen sensors are designed to monitor the oxygen content in emissions. If the sensor fails, it will cause the fuel mixing ratio of the car to be abnormal, resulting in problems such as high fuel consumption and vibration. These problems can usually be solved by replacing the oxygen sensor. 3. Fault signal: unsteady idle speed, acceleration stuttering. Solution: The intake temperature sensor may fail. The intake temperature sensor is a device that can monitor the air temperature and perform the oil-gas mixing ratio. Therefore, if there are problems such as unstable idle speed or acceleration interruption, it may be caused by overheating or damage to the intake temperature sensor. The problem can usually be solved by cleaning or replacing the intake temperature sensor.Four. Fault signal: The engine cannot be started. Solution: The throttle position sensor may fail. The throttle position sensor is designed to measure and adjust the opening angle of the throat to ensure the mixing ratio of fuel and engine efficiency. If it is found that the engine cannot start, it may be caused by the failure of the throttle position sensor. You can consider replacing or cleaning the throttle position sensor. In general, engine sensor failure may cause a series of automobile problems, so it is very important to monitor and repair failures in time. If there is a fault, it is recommended to find a professional car repairman or a car shop for inspection and repair. Under normal operation, car owners should also pay attention to maintaining the car and replacing air filters and other parts in time to improve the service life and normal performance of the car engine sensor and extend the service life of the car.

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