VOLVO
ECM-21AD - Long-term fuel trim load, bank1. Lower limit
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
4 modeleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Pokaż modele wg rocznika i silnika (9)
- Volvo C30 (2007–2013)2007Tylko silnik: B5254T3
- Volvo C30 (2007–2013)2008–2013Tylko silnik: B5254T7
- Volvo C70 (2006–2013)2006–2007Tylko silnik: B5254T3
- Volvo C70 (2006–2013)2008–2013Tylko silnik: B5254T7
- Volvo S40 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo S40 (2004–2013)2008Tylko silnik: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Tylko silnik: B5254T7
- Volvo V50 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo V50 (2004–2013)2008–2012Tylko silnik: B5254T7
Co oznacza ten kod błędu?
Although the code is named for a lower limit, the condition is that the long-term correction of the fuel mixture has nearly reached its maximum at both lower and upper part load. The cause can be an intake leak, high fuel pressure, leaking injectors, the mass air flow sensor, the engine oil or a damaged oxygen sensor.
Możliwe przyczyny
- Air leakage in the intake system
- High fuel pressure
- Leaking injectors
- Damaged mass air flow sensor
- Contaminated engine oil or oil level too high
- Damaged heated oxygen sensor
Co możesz zrobić
- 1Check the intake system for air leakage
- 2Compare the oil level with the dipstick marks and look at the oil for contaminants
- 3Look for fuel leaks at the fuel lines and the injectors
- 4Have a diagnostic tool? Read the long-term fuel trim in live data during a test drive, and see whether it sits close to an extreme position
- 5If the fault remains, have a workshop measure the fuel pressure, check the injectors and replace the oxygen sensor if needed
Objawy, które możesz zauważyć1
- The malfunction indicator lamp (MIL) comes on
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.