VOLVO
ECM-P217821 - System Too Rich Off Idle - Bank 1. General Signal Failures. Signal too low
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
3 modeleS60 (2011–), S80 (2007–), V70 (2008–)
Pokaż modele wg rocznika i silnika (9)
- Volvo S60 (2011–)2011–2012Tylko silnik: B5254T5
- Volvo S80 (2007–)2007–2008Tylko silnik: B5254T6
- Volvo S80 (2007–)2009Tylko silnik: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Tylko silnik: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Tylko silnik: B5254T10
- Volvo V70 (2008–)2008Tylko silnik: B5254T6
- Volvo V70 (2008–)2009Tylko silnik: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Tylko silnik: B5254T10, B5254T11
- Volvo V70 (2008–)2012Tylko silnik: B5254T10
Co oznacza ten kod błędu?
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.
Możliwe przyczyny
- 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
Co możesz zrobić
- 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
Objawy, które możesz zauważyć4
- 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
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.