P2Bxx codes — Fuel & air metering and auxiliary emission controls
13 generic powertrain trouble codes from P2B93 to P2BF4. Each links to its page: what it means, how serious it is, and how to fix it.
- P2B93Wastegate Position Sensor A Exceeded Learning Limit
- P2BA6NOx Exceedance - SCR NOx Catalyst Performance
- P2BA7NOx Exceedence - Empty Reagent Tank
- P2BA8NOx Exceedence - Interruption of Reagent Dosing Activity
- P2BA9NOx Exceedence - Insufficient Reagent Quality
- P2BAANOx Exceedence - Low Reagent Consumption
- P2BABNOx Exceedence - Incorrect EGR Flow
- P2BACNOx Exceedence - Deactivation of EGR
- P2BADNOx Exceedence - Root Cause Unknown
- P2BAENOx Exceedence - NOx control monitoring system
- P2BAFSCR system performance issue (Urea dosing, urea quality or SCR sensor fault)
- P2BBBTurbocharger/Supercharger Bypass Valve A Position Sensor Circuit
- P2BF4Exhaust Flow Control Valve A Position Circuit