VOLVO
ECM-P117900 - Fuel/Air Mixture Unstable during Quick Test of Fuel Trim. General Failure Information. No sub type information
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
3 ModelleS60 (2011–), S80 (2007–), V70 (2008–)
Modelle nach Baujahr und Motor anzeigen (9)
- Volvo S60 (2011–)2011–2012Nur Motor: B5254T5
- Volvo S80 (2007–)2007–2008Nur Motor: B5254T6
- Volvo S80 (2007–)2009Nur Motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Nur Motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Nur Motor: B5254T10
- Volvo V70 (2008–)2008Nur Motor: B5254T6
- Volvo V70 (2008–)2009Nur Motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Nur Motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Nur Motor: B5254T10
Was bedeutet der Fehlercode?
The code is set during the workshop quick test of lambda control, when the fuel-air mixture varies considerably for a certain time. The test is used to find air leaks or low fuel pressure, among other things. An unstable mixture may mean there is a fault that could cause lambda control codes during normal driving.
Mögliche Ursachen
- Damaged oxygen sensor (HO2S)
- Air leak in the intake system
- Air leak in the exhaust system
- Damaged mass airflow meter
- Incorrectly calculated ethanol content
Was Sie tun können
- 1Look for air leaks in both the intake and the exhaust system, for example at hoses and joints
- 2Inspect the mass airflow meter for damage and check that its connector is firmly seated
- 3If the fault remains after these checks, have a workshop check the oxygen sensor and the ethanol calculation
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.