VOLVO
ECM-123D - Air mass. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Kun motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Kun motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2008Kun motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Kun motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
Hva betyr feilkoden?
The measured air quantity falls below the expected value by too wide a margin, and the lambda adaptation is also outside its normal range. The code is set, and the cause may be a leak, a blockage or a damaged air mass sensor.
Mulige årsaker
- Poor contact or oxidation at the air mass sensor connector
- Leakage in the intake
- Dirty or blocked intake system
- Damaged mass air flow sensor
Hva du kan gjøre
- 1Check that the air mass sensor connector is clean and firmly seated
- 2Check the intake hoses for leaks and cracks
- 3Check that the throttle is not dirty, and clean it if needed
- 4If the fault remains, have a workshop check the mass air flow sensor
Symptomer du kan merke2
- The malfunction indicator lamp comes on
- The engine performs worse
Hva feilen kan påvirke3
- Boost pressure is calculated rather than measured
- Rear oxygen sensor control is not carried out
- Misfire detection is switched off
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.