VOLVO
ECM-250A - Long-term fuel trim. Lower limit
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
11 modellerC30 (2007–2013), C70 (2006–2013), C70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S40 (2004–2013), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V50 (2004–2013), V70 (1997–2000), V70 (2000–2008)
Vis modeller per årsmodell og motor (27)
- Volvo C30 (2007–2013)2007–2011Kun motor: B5244S4
- Volvo C70 (2006–2013)2006Alle motorer unntatt: B5254T3
- Volvo C70 (2006–2013)2007–2010Kun motor: B5244S4, B5244S5
- Volvo C70 (2006–2013)2011Kun motor: B5244S4
- Volvo C70 Cabriolet (1998–2005)2000Kun motor: B5244S
- Volvo C70 Coupé (1998–2002)1999Kun motor: B5254S DENSO
- Volvo C70 Coupé (1998–2002)2000Kun motor: B5244S
- Volvo S40 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo S40 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
- Volvo S60 (2001–2009)2001, 2009Kun motor: B5244S, B5244S2
- Volvo S60 (2001–2009)2002Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2003–2005Kun motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2006Kun motor: B5244S, B5244S2, B5244S6, B5244SG
- Volvo S60 (2001–2009)2007–2008Kun motor: B5244S, B5244S2, B5244SG
- Volvo S70 (1997–2000)1999Kun motor: B5254S DENSO
- Volvo S70 (1997–2000)2000Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)1999–2000Kun motor: B5244S, B5244S2
- Volvo S80 (1999–2006)2001, 2006Kun motor: B5244S, B5244S2, B5244SG
- Volvo S80 (1999–2006)2002–2005Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V50 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo V50 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
- Volvo V70 (1997–2000)1999Kun motor: B5254S DENSO
- Volvo V70 (1997–2000)2000Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2001, 2007–2008Kun motor: B5244S, B5244S2, B5244SG
- Volvo V70 (2000–2008)2002Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2003–2005Kun motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2006Kun motor: B5244S, B5244S2, B5244S6, B5244SG
Hva betyr feilkoden?
The ECM receives information from the front oxygen sensor about the mixture at varying loads. The code is stored when the mixture drifts so far from target that the long-term fuel trim reaches its lower end-stop, which means the engine runs too rich.
Mulige årsaker
- High fuel pressure
- Leaking injectors
- Leaking evaporative emission system or damaged EVAP valve
- Contaminated engine oil or oil level too high
Hva du kan gjøre
- 1Read and note the code, clear it and road test to see whether it returns
- 2Check the dipstick: the oil should sit between its minimum and maximum marks, and smell the oil to see whether it smells of petrol
- 3Look at the hoses between the EVAP valve and the canister for damage and loose connections
- 4If you have a diagnostic tool: look at the fuel trim adaptation values in live data and see which range deviates most
- 5Have a workshop with diagnostic equipment check the fuel pressure, the injectors and the EVAP system
Symptomer du kan merke3
- The malfunction indicator lamp (MIL) is lit
- Poor performance, the car lacks power
- May result in high fuel consumption
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.