VOLVO
ECM-980F - Air flow. Faulty flow
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
7 ModelleC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 (2000–2008)
Modelle nach Baujahr und Motor anzeigen (17)
- Volvo C70 Cabriolet (1998–2005)2000Nur Motor: B5244S
- Volvo C70 Coupé (1998–2002)2000Nur Motor: B5244S
- Volvo S60 (2001–2009)2001Nur Motor: B5244S, B5244S2
- Volvo S60 (2001–2009)2002Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2003–2005Nur Motor: B5244SG, B5244SG2
- Volvo S60 (2001–2009)2006–2008Nur Motor: B5244SG
- Volvo S70 (1997–2000)2000Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)2000Nur Motor: B5244S, B5244S2
- Volvo S80 (1999–2006)2001Nur Motor: B5244S, B5244S2, B5244SG
- Volvo S80 (1999–2006)2002Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)2003–2005Nur Motor: B5244SG, B5244SG2
- Volvo S80 (1999–2006)2006Nur Motor: B5244SG
- Volvo V70 (1997–2000)2000Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2001Nur Motor: B5244S, B5244S2, B5244SG
- Volvo V70 (2000–2008)2002Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2003–2005Nur Motor: B5244SG, B5244SG2
- Volvo V70 (2000–2008)2006–2008Nur Motor: B5244SG
Was bedeutet der Fehlercode?
The ECM works out the air mass entering the engine from throttle position, engine speed, air temperature and atmospheric pressure, among other inputs. The calculated value is compared with the signals from the air mass meter and the intake pressure sensor. If either sensor deviates enough, the code is stored.
Mögliche Ursachen
- Faulty signal from one of the sensors
- Exhaust camshaft has slipped a tooth
- Air leakage after the air mass meter
- Defective intake manifold pressure sensor
- Defective air mass meter
- Defective engine control module
Was Sie tun können
- 1Check for air leaks after the air mass meter, in the hoses and connections on the intake side
- 2If you have a diagnostic tool: read air mass and intake manifold pressure in live data at idle and when pressing the throttle; they should follow engine load
- 3Check that the air mass meter and the intake manifold pressure sensor are firmly fitted and have clean connectors
- 4If the exhaust camshaft may have slipped a tooth, have a workshop check the camshaft position against the crankshaft
- 5Uneven idle can come from the control module running on substitute values, which is not the same as a drivability fault that existed before. After repair: clear the code and test drive
Symptome, die Sie bemerken können2
- Uneven idle
- Malfunction indicator lamp lit
Was der Fehler beeinflussen kann3
- The throttle closes under braking, and pedal input is ignored while the brake is pressed
- Cruise control is switched off for the driving cycle in which the fault was detected
- Engine speed is limited by fuel cut-off and capped at a low value
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.