VOLVO
ECM-150A - Mass air flow (MAF) sensor. Lower limit
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 (2000–2008)
Vis modeller per årsmodell og motor (20)
- Volvo C70 Cabriolet (1998–2005)2000Kun motor: B5244S
- Volvo C70 Coupé (1998–2002)1999Kun motor: B5254S DENSO
- Volvo C70 Coupé (1998–2002)2000Kun motor: B5244S
- Volvo S60 (2001–2009)2001Kun motor: B5244S, B5244S2
- Volvo S60 (2001–2009)2002Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2003–2005Kun motor: B5244SG, B5244SG2
- Volvo S60 (2001–2009)2006–2008Kun motor: B5244SG
- Volvo S70 (1997–2000)1999Kun motor: B5254S DENSO
- Volvo S70 (1997–2000)2000Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)1999–2000Kun motor: B5244S, B5244S2
- Volvo S80 (1999–2006)2001Kun motor: B5244S, B5244S2, B5244SG
- Volvo S80 (1999–2006)2002Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)2003–2005Kun motor: B5244SG, B5244SG2
- Volvo S80 (1999–2006)2006Kun motor: B5244SG
- Volvo V70 (1997–2000)1999Kun motor: B5254S DENSO
- Volvo V70 (1997–2000)2000Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2001Kun motor: B5244S, B5244S2, B5244SG
- Volvo V70 (2000–2008)2002Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2003–2005Kun motor: B5244SG, B5244SG2
- Volvo V70 (2000–2008)2006–2008Kun motor: B5244SG
Hva betyr feilkoden?
The engine control module (ECM) compares the mass air flow (MAF) sensor with the intake manifold pressure (MAP) sensor while lambda control is active. If the MAF sensor reads more than the MAP sensor, the fault code is set. The code can be set together with other fault codes, and then those should be traced together.
Mulige årsaker
- The MAF sensor reads more air than the MAP sensor in the intake manifold
- Air leak in the intake system, for example in the hose between the MAF sensor and the throttle body
- Poor contact at the MAF sensor or the pressure sensor
Hva du kan gjøre
- 1Switch off the ignition and check the connectors at the MAF sensor and the pressure sensor for contact resistance and oxidation
- 2Check that the hose between the MAF sensor and the throttle body is intact, firmly fitted and not leaking
- 3Check that the hose between the pressure sensor and the intake manifold is airtight, undamaged and not trapped
- 4With a diagnostic tool, switch off A/C and seat heaters, then compare the MAF and pressure values in live data at idle and at higher speed
- 5If the fault remains, have a workshop check the MAF sensor and the pressure sensor
Symptomer du kan merke1
- No noticeable symptoms for the driver
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.