VOLVO
ECM-2B1A - Rear lambda probe ageing, bank 2. Signal too high. Intermittent fault
System
Motorstyring (ECM)
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Gjelder følgende modeller:
1 modellS80 (1999–2006)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The rear oxygen sensor on bank 2 has aged and gives a signal that is too high. The fault is intermittent, meaning it comes and goes: it has been present, but is not necessarily present right now.
Mulige årsaker
- Leakage in the exhaust system
- Defective oxygen sensor
Hva du kan gjøre
- 1Read and note the code, clear it and road test to see whether it returns
- 2Inspect the exhaust system for leaks, for example by listening for a leak sound while the engine runs
- 3Check the connector at the oxygen sensor for play, contact resistance and oxidation
- 4If any leak is fixed or none is found but the fault remains, have a workshop check the sensor
Symptomer du kan merke1
- The malfunction indicator lamp (MIL) comes on
Hva feilen kan påvirke2
- Control using two oxygen sensors is switched off
- Diagnosis of the catalytic converter is switched off
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.