Barometric Pressure Sensor: Testing and Inspection

BAROMETRIC PRESSURE SENSOR (BPS)
The barometric pressure sensor installed on the VAF Sensor senses the barometric pressure and converts it into a voltage which is sent to the ECM.
The ECM uses this signal to compute the altitude at which the vehicle is operating and corrects the air-fuel ratio and the ignition timing, thus improving driveability at high altitude.




CIRCUIT DIAGRAM

NOTE:
1. If the barometric pressure sensor is faulty, the vehicle will experience poor driveability.
2. If the pressure of the barometric pressure sensor drops greatly during high speed driving, check the air cleaner for clogging.




Using GST










HARNESS INSPECTION