P222F
Barometric Pressure Sensor A/B Correlation
Barometric pressure sensors A and B disagree by more than the allowed tolerance. Used for redundancy on hybrid and emission-critical systems.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- One sensor driftsCommon
Parts involved
- Barometric Pressure Sensor
P222F 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.