Was bedeutet der Fehlercode ECM-P029984?

Diagnose und Fehlercodedefinition für ECM-P029984 (Volvo C30 (2007–2013), Volvo S40 (2004–2013), Volvo S60 (2011–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P029984 - Turbocharger/Supercharger A Underboost Condition. Bus Signal / Message Failures. Signal below allowable range

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

9 Modelle

C30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–)

Modelle nach Baujahr und Motor anzeigen (9)

Was bedeutet der Fehlercode?

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.

Mögliche Ursachen

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

Was Sie tun können

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

Symptome, die Sie bemerken können1

The Check engine light comes on or behaves abnormally

Was der Fehler beeinflussen kann1

Exhaust gas recirculation (EGR) control stops

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.