ECM-400C - Three-way catalytic converter (TWC) efficiency, bank 1. Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
9 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Vis modeller per årsmodell og motor (18)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo S60 (2001–2009)2005–2006Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2007Kun motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2008–2009Kun motor: B5204T5, B5244T5, B5254T2
- Volvo S80 (1999–2006)2005–2006Kun motor: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V70 (2000–2008)2005Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2006–2007Kun motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2008Kun motor: B5254T2
- Volvo V70 XC / XC70 (2001–2007)2005Alle motorer unntatt: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Kun motor: B5244T4, B5254T2
- Volvo V70 XC / XC70 (2001–2007)2007Kun motor: B5254T2
- Volvo XC90 (2003–)2005–2006Kun motor: B5254T2, B6294T
- Volvo XC90 (2003–)2007–2012Kun motor: B5254T2
- Volvo XC90 (2003–)2013–2014Kun motor: B5254T9
- Volvo XC90 (2003–)2015
Hva betyr feilkoden?
The efficiency of the catalytic converter on bank 1 deviates too much, according to the engine control module. It compares the signal from the rear oxygen sensor with the front one, and when the difference becomes too large the code is set while driving. The cause may be misfiring, a leak in the intake or exhaust system, faulty fuel pressure, uneven compression or a damaged catalytic converter.
Mulige årsaker
- Misfiring
- Leakage in the intake system
- Leakage in the exhaust system
- Faulty fuel pressure
- Uneven compression
- Damaged catalytic converter
Hva du kan gjøre
- 1First check whether there are codes for misfiring, and deal with those before this one
- 2Check the spark plugs for damage to the insulation, since misfiring can cause the same fault
- 3Look for leaks in the intake system and the exhaust system, for example at hoses, joints and gaskets
- 4Have a workshop check fuel pressure, residual pressure and compression with diagnostic equipment
- 5If the fault remains after this: have a workshop try a new oxygen sensor and then a new catalytic converter
Symptomer du kan merke1
- Malfunction indicator lamp is lit
Hva feilen kan påvirke2
- Rear oxygen sensor control is switched off
- Rear long-term fuel trim is disabled
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