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oil pressure sensor unplugged
Under normal circumstances, there are two oil pressure sensors, namely high pressure and low pressure sensors. No matter which one is broken, the engine fault light and oil light on the instrument panel are always on. At this time, it is absolutely not allowed to drive again, and it is necessary to go to the repair shop to check the problem. Because you don't know if it's broken under high pressure or low pressure. 2. If the oil pressure is insufficient, some high-end car computers will protect the engine, forcing it to shut down. But some cars do not have this feature, and driving it for a long time will definitely cause the engine to stall.
Open circuit. Pulling out the EA888 engine oil bottom pressure sensor will cause an open circuit, and unplugging the engine oil pressure sensor plug is equivalent to an open circuit. Even if the engine oil pressure sensor circuit is open, an alarm cannot be triggered. The oil pressure sensor of a car is an important device for detecting the oil pressure of the vehicle's engine, and the detected data can help control the normal operation of the engine.
The oil pressure sensor is broken, and the most obvious reflection is that the oil alarm light will remain on, unable to know the real-time situation of the oil and unable to remind the owner in a timely manner. If you continue to drive under high pressure or fuel shortage, it will definitely have a significant impact on the engine and may even be scrapped directly. The oil pressure sensor is broken, and the most obvious reflection is that the oil alarm light will remain on, unable to know the real-time situation of the oil and unable to remind the owner in a timely manner. If you continue to drive under high pressure or fuel shortage, it will definitely have a significant impact on the engine and may even be scrapped directly. MEMS (Micro Electro Mechanical System), also known as oil pressure sensor, refers to a micro electromechanical system that integrates micro sensors, actuators, signal processing and control circuits, interface circuits, communication and power supply. The oil pressure sensor is installed on the main oil duct of the engine. When the engine is running, the pressure measuring device detects the oil pressure, converts the pressure signal into an electrical signal, and sends it to the signal processing circuit. After voltage amplification and current amplification, the amplified pressure signal is connected to the oil pressure indicator through a signal line. The current ratio of the two coils in the oil pressure indicator changes, indicating the engine oil pressure. The pressure signal amplified by voltage and current is also compared with the alarm voltage set in the alarm circuit. When the voltage is lower than the alarm voltage, the alarm circuit outputs an alarm signal and illuminates the alarm light through the alarm wire.
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