VOLVO
ECM-P209728 - Post Catalyst Fuel Trim System Too Rich Bank 1. General Signal Failures. Signal bias level out of range / zero adjustment failure
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
6 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–)
Vis modeller per årsmodell og motor (11)
- Volvo S60 (2011–)2011Kun motor: B4164T, B4164T3
- Volvo S60 (2011–)2012–2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo S80 (2007–)2011, 2015Kun motor: B4164T
- Volvo S80 (2007–)2012–2014Kun motor: B4164T, B4164T2
- Volvo V40 (2013–)2013Kun motor: B4164T, B4164T3
- Volvo V40 (2013–)2014–2015Kun motor: B4164T, B4164T3, B4164T4
- Volvo V40 Cross Country (2013–)2013–2015Kun motor: B4164T
- Volvo V60 (2011–)2011Kun motor: B4164T, B4164T3
- Volvo V60 (2011–)2012–2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo V70 (2008–)2011Kun motor: B4164T
- Volvo V70 (2008–)2012–2015Kun motor: B4164T, B4164T2
Hva betyr feilkoden?
Although the code is named signal bias or zero adjustment failure, it applies when the oxygen sensor shows a mixture that is wrongly rich compared with what the engine control module (ECM) expects. The fault may come from a leak in the exhaust system or from a damaged oxygen sensor.
Mulige årsaker
- Leakage in the exhaust system
- Oxygen sensor indicates an incorrectly rich mixture
- Damaged oxygen sensor
Hva du kan gjøre
- 1Check the wiring to the oxygen sensor for damage and chafing
- 2Check the exhaust system for leaks, since a leak can give a wrong signal
- 3If you have a diagnostic tool: read the oxygen sensor signal in live data with the engine running steadily and see whether it shows a rich mixture
- 4If the fault remains, have a workshop establish whether the engine control module has an internal fault and, if so, replace it
Symptomer du kan merke1
- Check engine warning lamp lights or behaves abnormally
Hva feilen kan påvirke2
- Oxygen sensor control is switched off
- Catalytic converter diagnostics are switched off
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