General Information

Engine Control
P2227 Barometric Pressure Circuit Range/Performance - General Information

Component Location





General Description

Barometric sensor is installed in ECM and senses atmospheric pressure where the vehicle is.
Based on singal of barometric sensor, air density is calculated. And barometric sensor is used to detect mass air flow with MAFS, IATS.
This sensor is required to perform fuel injection quantity correction in variable altitude.

DTC Description

If the output of ambient pressure sensor is shown abnormal value(refer to DTC Detecting Condition), ECU sets DTC P2227.

DTC Detecting Condition