VOLVO
ECM-P050A94 - Cold Start Idle Air Control System Performance. Component Failures. Unexpected operation
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–)
Vis modeller per årsmodell og motor (12)
- Volvo S60 (2011–)2011Kun motor: B4204T6, B4204T7
- Volvo S60 (2011–)2012–2014Kun motor: B4204T7
- Volvo S80 (2007–)2010Kun motor: B4204T6
- Volvo S80 (2007–)2011–2014Kun motor: B4204T6, B4204T7
- Volvo V60 (2011–)2011Kun motor: B4204T6, B4204T7
- Volvo V60 (2011–)2012–2014Kun motor: B4204T7
- Volvo V70 (2008–)2010Kun motor: B4204T6
- Volvo V70 (2008–)2011Kun motor: B4204T6, B4204T7
- Volvo V70 (2008–)2012–2014Kun motor: B4204T7
- Volvo XC60 (2009–)2010Kun motor: B4204T6
- Volvo XC60 (2009–)2011–2012Kun motor: B4204T6, B4204T7
- Volvo XC60 (2009–)2013–2015Kun motor: B4204T7
Hva betyr feilkoden?
On a cold start the ECM raises the idle speed to warm the catalytic converter. The code is set when the actual idle speed stays below the limit for a set time, that is, even though the idle should be higher during warm-up. A blocked intake or exhaust system may be the cause.
Mulige årsaker
- Blocked intake system
- Blocked exhaust system
Hva du kan gjøre
- 1At low and unsteady idle speed: check that the intake and exhaust systems are not blocked
- 2Check that the air filter is not clogged and that the intake is free from objects
- 3If you have a diagnostic tool, read the idle speed in live data during a cold start and see whether it rises during warm-up
- 4Clear the code and road test the car, or let the engine cool and start it again to see whether the code returns
- 5If the code returns, have a workshop with diagnostic equipment check the intake and exhaust systems and the idle control
Symptomer du kan merke3
- The check engine lamp lights or behaves abnormally
- Low idle, either sometimes or all the time
- Uneven idle
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