VOLVO
ECM-P217821 - System Too Rich Off Idle - Bank 1. General Signal Failures. Signal too low
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 engine control module (ECM) adjusts injection from the lambda sensor reading. The code is set when that adjustment has to be made close to its maximum in the lower or upper part-load range, and the signal is too low. The fault may lie in a leak in the intake, the fuel pressure, the injectors, the mass air flow sensor, the lambda sensor or the fuel.
Mulige årsaker
- Air leakage in the intake system
- High fuel pressure
- Leaking injectors
- Damaged mass air flow (MAF) sensor
- Damaged heated oxygen sensor (HO2S)
- Incorrectly calculated ethanol content
Hva du kan gjøre
- 1Check that the fuses are intact; their locations are in the owner's manual or on the fuse box cover
- 2Check the intake system for air leakage, such as cracked hoses and loose clamps
- 3Have a workshop measure the fuel pressure and check whether the injectors leak
- 4Look at the engine oil for contamination and check that the level sits between the min and max marks
- 5Check that the mass air flow sensor is not damaged or dirty
- 6Replace the lambda sensor if nothing else is found, since a damaged lambda sensor can also set this code
Symptomer du kan merke4
- The malfunction indicator lamp (MIL) is lit
- The car hesitates or surges when accelerating
- The idle is uneven
- The engine does not start and only cranks
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