How much is a sensor of Changan Automobile?

The price of automobile sensors is between 50 yuan and 500 yuan; In the past, it was only used for engines, but it has been extended to chassis, body and lighting and electrical systems. More than 100 sensors are used in these systems. Among a wide variety of sensors, the common ones are: 1, intake pressure sensor: it reflects the change of absolute pressure in the intake manifold and provides reference signal for ECU (engine electronic control unit) to calculate the fuel injection duration; 2. Air flow meter: measures the amount of air inhaled by the engine and provides it to ECU as a reference signal for fuel injection time; 3. Throttle position sensor: measure the throttle opening and provide it to ECU as a reference signal for fuel cut-off, air-fuel ratio control and ignition advance angle correction; 4. Crankshaft position sensor: detects the rotating speed of crankshaft and engine, and provides it to ECU as reference signal to determine ignition timing and working sequence; 5. Oxygen sensor: detect the oxygen concentration in the exhaust gas and provide it to ECU as a reference signal to control the air-fuel ratio near the optimal value (theoretical value);