VOLVO
ECM-P029984 - Turbocharger/Supercharger A Underboost Condition. Bus Signal / Message Failures. Signal below allowable range
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
9 modellerC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2011–2013Kun motor: D4162T
- Volvo S40 (2004–2013)2011–2012Kun motor: D4162T
- Volvo S60 (2011–)2011–2015Kun motor: D4162T
- Volvo S80 (2007–)2012–2015Kun motor: D4162T
- Volvo V40 (2013–)2013–2015Kun motor: D4162T
- Volvo V40 Cross Country (2013–)2013–2015Kun motor: D4162T
- Volvo V50 (2004–2013)2011–2012Kun motor: D4162T
- Volvo V60 (2011–)2011–2015Kun motor: D4162T
- Volvo V70 (2008–)2012–2015Kun motor: D4162T
Hva betyr feilkoden?
The code concerns the control signal from the engine control module (ECM) to the turbo control valve, which falls outside its permitted limit. The turbo control valve sets the intake manifold pressure by acting on the pressure capsule that controls the turbine position. The code is stored when the control signal falls outside its limits, and it is general.
Mulige årsaker
- Air leak in the intake system between the turbo and the boost pressure sensor
- Clogged hoses to the turbo unit or the turbo control valve
- Damaged turbo control valve
Hva du kan gjøre
- 1Read and note the fault code, clear it and test drive to see whether it returns
- 2Check the intake system between the turbo and the boost pressure sensor for leaks
- 3Check the hoses to the turbo unit and the turbo control valve for blockage
- 4Have a workshop with diagnostic equipment check the turbo control valve
Symptomer du kan merke1
- The Check engine light comes on or behaves abnormally
Hva feilen kan påvirke1
- Exhaust gas recirculation (EGR) control stops
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