OBD-II code · Powertrain (generic, extended)
P227B Barometric Pressure Sensor C Circuit Range/Performance
Barometric sensor C reads in range but plausibility check fails — slow response or stuck reading. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P227B?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor drift
- Less likelySensor element aged beyond calibration window
- Less likelySensor mounting loose - signal damping
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Barometric Pressure Sensor
Related codes
- P222BBarometric Pressure Sensor B Circuit Range/Performance
- P2278O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3
- P2279Intake Air System Leak
- P227ABarometric Pressure Sensor C Circuit
- P227CBarometric Pressure Sensor C Circuit Low
- P227DBarometric Pressure Sensor C Circuit High
- P227EBarometric Pressure Sensor C Circuit Intermittent/Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.