Description:
The Barometric Pressure Sensor, also known as the Baro sensor, measures the barometric pressure of the environment that the vehicle is currently operating under and sends a voltage signal to the Engine Control Module (ECM). The ECM calculates proper air/fuel ratios, idle speeds and ignition spark timing based in part on the Barometric Pressure Sensor's signal. A malfunctioning or inoperative Barometric Pressure Sensor can cause hard starting, power loss, stalling, rough idle and hesitation. It can also cause the Check Engine Light (CEL), Service Engine Soon (SES) or Malfunction Indicator Lamp (MIL) to illuminate and can set a trouble code (P-code) in the ECM when not functioning correctly. Not correcting a failed Barometric Pressure Sensor condition can cause reduced fuel mileage and performance, increased emissions and damage to other components such as the catalytic converter.
Specifications:
