VOLVO
ECM-211C - Long-term fuel trim, bank 2. Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS80 (1999–2006), XC90 (2003–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The engine control module (ECM) manages the air-fuel mixture using the bank 2 oxygen sensor and adjusts injection time to reach lambda 1. If that adjustment reaches its upper limit under higher load and can no longer keep up, the code is set. The cause may be a leak or low fuel pressure, but a damaged bank 2 oxygen sensor can also cause it.
Mulige årsaker
- Leak in the intake air system
- Leak in the exhaust system
- Low fuel pressure
- Damaged bank 2 oxygen sensor
Hva du kan gjøre
- 1Read and clear the fault code and check whether it returns
- 2Check the intake hoses and connections on the intake side for leaks
- 3Check the exhaust system for leaks
- 4If you have a diagnostic tool, follow the bank 2 lambda integrator in live data at idle and under load
- 5Have a workshop check the fuel pressure if the fault remains
Symptomer du kan merke1
- No noticeable symptoms for the driver
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.