VOLVO
ECM-271A - Adaptive lambda control, bank 2 .Bottom limit
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS80 (1999–2006), XC90 (2003–)
Was bedeutet der Fehlercode?
The long-term correction for bank 2 sets how much fuel the ECM adds based on the oxygen sensor. When it reaches its lower limit, the mixture is too rich and the ECM has reduced the fuel as far as it is allowed.
Mögliche Ursachen
- Fuel pressure is too high
- Injectors that leak
- Faulty mass air flow sensor
- Contaminated engine oil
- Oil level is too high
Was Sie tun können
- 1Look at the oil level on the dipstick. It should sit between the marks and the oil should not feel diluted
- 2Have a workshop measure the fuel pressure and check the injectors, since high pressure and leakage give a rich mixture
- 3Have a workshop check the mass air flow sensor, since a defective sensor can give the wrong fuel quantity
- 4If you have diagnostic equipment, read the bank 2 long-term correction with the engine running and see whether the value is steady
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.