BMW 523i 530i front left 04 oxygen sensor

Auto parts sensor BMW E60 [523i, 530i, n52] front left 04 oxygen sensor The automobile oxygen sensor is used in the feedback control system of the electronic control fuel injection device to detect the oxygen concentration in the exhaust and the concentration and dilution of the air-fuel ratio, monitor the theoretical air-fuel ratio combustion in the engine, and transmit the feedback signal to the computer. It is a key part to control the automobile exhaust emission, reduce the automobile environmental pollution and improve the fuel combustion quality of the automobile engine. Once the oxygen sensor fails, the computer of the electronic fuel injection system will not be able to obtain the information of oxygen concentration in the exhaust pipe, so it will not be able to feedback control the air-fuel ratio, which will increase the engine fuel consumption and exhaust pollution, and the engine will have faults such as unstable idle speed, misfire, surge and so on. Therefore, the fau…

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