P2226
Barometric Pressure Circuit
The ECU detects a general fault in the barometric pressure sensor circuit. The atmospheric pressure value used for altitude compensation and fuel/air calculation is not available or implausible.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Defective barometric pressure sensorCommon
- Wiring fault to BPSPossible
Parts involved
- Barometric Pressure Sensor
- Bps Wiring
P2226 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.