VOLVO
ECM-4201 - Three-way catalytic converter (TWC) efficiency. Power deterioration
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:
7 modellerC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 (2000–2008)
Vis modeller per årsmodell og motor (18)
- 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 S60 (2001–2009)2001–2002, 2009Kun motor: B5244S, B5244S2
- 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 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?
After start-up the engine control module tests the catalytic converter's efficiency by alternating between rich and lean mixture and seeing how quickly the rear oxygen sensor reacts. If the sensor switches too quickly, the module interprets this as the catalytic converter having deteriorated. The fault can come from exhaust gas leakage, damaged fuel injectors or a damaged catalytic converter.
Mulige årsaker
- Air leak in the exhaust system
- One or more damaged fuel injectors
- Damaged catalytic converter
Hva du kan gjøre
- 1Check the exhaust system for air leaks at joints and connections
- 2Repair any leak found and clear the fault code
- 3On some engines from model year 2001 to 2002, all fuel injectors should be replaced if the fault remains; have a workshop do this
- 4Have you got a diagnostic tool: watch in live data how the rear oxygen sensor switches while the engine runs under even load
- 5Have a workshop replace the catalytic converter if the fault remains after the other checks have been made
Symptomer du kan merke1
- Malfunction indicator lamp (MIL) is on
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