OBD-II code · Powertrain (generic, extended)
P2B92 Turbocharger/Supercharger B Temperature Sensor Range/Performance
The ECM detects a range/performance fault on the turbocharger/supercharger b temperature sensor. Reading cannot be used reliably for control.
Is it safe to drive with P2B92?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor characteristic drifted
- PossibleSensor mounting displaced
- Less likelySensor element aged beyond calibration window
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Turbocharger B Temperature Sensor, Wiring Harness, Ecm
Related codes
- P2B71Turbocharger/Supercharger A Temperature Sensor Range/Performance
- P2B8FTurbocharger/Supercharger B Temperature Sensor Circuit
- P2B90Turbocharger/Supercharger B Temperature Sensor Circuit Low
- P2B91Turbocharger/Supercharger B Temperature Sensor Circuit High
- P2B93Wastegate Position Sensor A Exceeded Learning Limit
- P2B94Wastegate Position Sensor B Exceeded Learning Limit
- P2B95Cold Start Injection Pulse Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.