OBD-II code · Powertrain (generic, extended)
P2B94 Wastegate Position Sensor B Exceeded Learning Limit
The required adaptation offset for the wastegate position sensor B exceeds the calibrated learning window. Sensor or mechanism out of nominal range.
Is it safe to drive with P2B94?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyMechanical wear shifted end-stops
- PossibleSensor reference drifted
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Likely to fail
- Parts involved
- Wastegate Position Sensor B, Wastegate Actuator, Ecm
Related codes
- P2B93Wastegate Position Sensor A Exceeded Learning Limit
- P2B91Turbocharger/Supercharger B Temperature Sensor Circuit High
- P2B92Turbocharger/Supercharger B Temperature Sensor Range/Performance
- P2B95Cold Start Injection Pulse Performance
- P2B96Injection Pulse Performance
- P2B97Exhaust Pressure Control Valve A Position Exceeded Learning Limit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.