Barometric Pressure Sensor: Description and Operation

OPERATION
- The barometric pressure sensor converts the barometric pressure into a voltage and inputs it to the engine control module, which then corrects the fuel injection rate, etc. based on the input signal.
- The 5 V power in the engine control module is supplied to the barometric pressure sensor. Through the circuit in the sensor, it is grounded in the engine control module.
- The barometric pressure sensor output voltage which is proportional to the barometric pressure (absolute pressure) is supplied to the engine control module.