P2227
Barometric Pressure Circuit Range/Performance
The barometric pressure sensor delivers an electrically valid signal that does not match the operating point — for example pressure jumps that do not match altitude changes, or values stuck near full scale.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Sensor driftCommon
- Connector corrodedPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Barometric Pressure Sensor
- Sensor Wiring
P2227 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.