VOLVO
ECM-673F - Mass airflow. Impaired performance
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (3)
Hva betyr feilkoden?
The engine control module continuously compares the signals from the mass airflow meter and the boost pressure sensor with a calculated value. If the measured value drifts away, the fault code is stored. The fault may be caused by an air leak in the intake system or by a damaged sensor or meter.
Mulige årsaker
- Air leaks in the intake system
- Poor connections, contact resistance or corroded terminals
- Damaged boost pressure sensor
- Damaged mass air flow meter
Hva du kan gjøre
- 1Look for air leaks in the intake system, such as loose hoses and clamps
- 2Check the connector at the air mass meter for play, contact resistance and oxidation, and clean it if needed
- 3Have a workshop check the boost pressure sensor, since it can also cause the fault code
- 4If the connector and intake system are in order but the fault remains, the air mass meter may be damaged. Have a workshop assess it
- 5Clear the fault code after the work and drive the car to see whether it comes back
Symptomer du kan merke5
- Poorer performance
- Poor performance and lack of power, especially when pulling away
- The engine hesitates or surges during acceleration
- The engine hesitates when slowing down
- A text message appears in the display
Hva feilen kan påvirke1
- Engine torque may be limited
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