VOLVO
ECM-21CC - Long-term fuel trim, idling, bank 1. Upper limit
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
4 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (9)
- Volvo C30 (2007–2013)2007Nur Motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Nur Motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Nur Motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Nur Motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo S40 (2004–2013)2008Nur Motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Nur Motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Nur Motor: B5254T7
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- Too high an ethanol content in the fuel
- Intake air leakage
- Damaged oxygen sensor
Was Sie tun können
- 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
Symptome, die Sie bemerken können1
- The malfunction indicator lamp (MIL) comes on
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.