VOLVO
ECM-21CC - Long-term fuel trim, idling, bank 1. Upper 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?
At idle, the long-term fuel trim for bank 1 has nearly reached its upper limit, so the engine control module has to add extra fuel to keep the mixture right. The cause can be fuel with too high an ethanol content, an intake air leak or a damaged oxygen sensor.
Możliwe przyczyny
- Too high an ethanol content in the fuel
- Intake air leakage
- Damaged oxygen sensor
Co możesz zrobić
- 1Ask whether the car has recently been refuelled with a fuel other than usual, since too high an ethanol content can cause the code
- 2Check the intake system for air leaks, such as hoses and clamps at the intake manifold
- 3Have a workshop measure the ethanol content of the fuel, as this needs special equipment
- 4Have a diagnostic tool? Read the long-term fuel trim in live data at idle with the engine warm, and see whether it sits close to its upper position
- 5If nothing points to wrong fuel and the fault remains, have a workshop check the oxygen sensor and replace it if needed
Objawy, które możesz zauważyć1
- The malfunction indicator lamp (MIL) comes on
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.