VOLVO
ECM-P010F21 - Mass or Volume Air Flow Sensor A/B Correlation. General Signal Failures. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Vis modeller per årsmodell og motor (6)
- Volvo S80 (2007–)2007–2009Kun motor: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Kun motor: D5244T4, D5244T5
- Volvo XC60 (2009–)2009Alle motorer unntatt: B6304T2
- Volvo XC70 (2008–)2008Alle motorer unntatt: B6324S
- Volvo XC70 (2008–)2009Kun motor: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Kun motor: D5244T18, D5244T5
Hva betyr feilkoden?
The ECM monitors the mass air flow sensor signal and stores the code when it is too high or too low. Here the signal is too low. The fault concerns the comparison between the A-side and B-side sensors, and
Mulige årsaker
- Signal wire shorted to ground
Hva du kan gjøre
- 1Read and note the code, clear it and road test to see whether it returns
- 2Check that the connectors at the mass air flow sensors are fully engaged and free from oxidation
- 3With a multimeter, check that the signal wire is not shorted to ground
- 4If you have diagnostic equipment, compare the A-side and B-side sensor values in live data at idle
- 5If the fault remains, have a workshop check the mass air flow sensor
Symptomer du kan merke1
- The car has poor performance and lacks power
Hva feilen kan påvirke2
- A calculated air mass value is used instead of the measured value
- Engine torque may be limited
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