VOLVO
ECM-P030498 - Cylinder 4 Misfire Detected. Component Failures. Component or system over temperature
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerS60 (2011–), S80 (2007–), V70 (2008–)
Vis modeller per årsmodell og motor (9)
- Volvo S60 (2011–)2011–2012Kun motor: B5254T5
- Volvo S80 (2007–)2007–2008Kun motor: B5254T6
- Volvo S80 (2007–)2009Kun motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Kun motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Kun motor: B5254T10
- Volvo V70 (2008–)2008Kun motor: B5254T6
- Volvo V70 (2008–)2009Kun motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Kun motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Kun motor: B5254T10
Hva betyr feilkoden?
The catalytic converter can overheat if cylinder 4 misfires so that unburned fuel reaches the exhaust system. The engine control module (ECM) sets the fault code when such misfires are detected early after the engine starts.
Mulige årsaker
- Poor fuel quality
- Clogged or leaking injection valve
- Incorrect fuel pressure
- Air leak
- Uneven compression
- Incorrectly calculated ethanol content
Hva du kan gjøre
- 1Read the fault codes; camshaft-related codes should be traced first
- 2Check that the fuel suits the season and that the fuel level is sufficient
- 3Check that the intake system and the crankcase ventilation do not leak or are not clogged
- 4If you have a diagnostic tool: read the misfire counter for cylinder 4 in live data with the engine running and see whether it is raised compared with the other cylinders
- 5Have a workshop with diagnostic equipment check the injection valve and the VVT unit on cylinder 4, and the compression
Symptomer du kan merke5
- The engine is hard to start
- Uneven idle
- Poor performance
- The engine hesitates and surges while driven
- The Check engine light lights up or behaves abnormally
Hva feilen kan påvirke2
- Rear oxygen sensor control is switched off
- Lambda control is switched off
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