VOLVO
ECM-1210 - Mass air flow (MAF) sensor. Flow too high
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (14)
- Volvo S60 (2001–2009)2005–2006Engine B5204T5, B5244T4, B5244T5, B5254T2, B5254T4 only
- Volvo S60 (2001–2009)2007Engine B5204T5, B5244T5, B5254T2, B5254T4 only
- Volvo S60 (2001–2009)2008–2009Engine B5204T5, B5244T5, B5254T2 only
- Volvo S80 (1999–2006)2005–2006Engine B5204T5, B5244T4, B5254T2, B6294S2, B6294T only
- Volvo V70 (2000–2008)2005Engine B5204T5, B5244T4, B5244T5, B5254T2, B5254T4 only
- Volvo V70 (2000–2008)2006–2007Engine B5204T5, B5244T5, B5254T2, B5254T4 only
- Volvo V70 (2000–2008)2008Engine B5254T2 only
- Volvo V70 XC / XC70 (2001–2007)2005All engines except: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Engine B5244T4, B5254T2 only
- Volvo V70 XC / XC70 (2001–2007)2007Engine B5254T2 only
- Volvo XC90 (2003–)2005–2006Engine B5254T2, B6294T only
- Volvo XC90 (2003–)2007–2012Engine B5254T2 only
- Volvo XC90 (2003–)2013–2014Engine B5254T9 only
- Volvo XC90 (2003–)2015
What does this fault code mean?
The engine control module has found that the air mass correction value is excessive, while the long-term fuel trim lies outside a set range. This indicates that the measured air quantity does not agree with the calculated one. Several functions are switched off or calculated instead.
Possible causes
- Oxidation and contact resistance at the connectors of the air meter
- Air leakage in the intake system
- Blocked intake system
- Damaged mass air flow sensor
What you can do
- 1Check the mass air flow sensor connector for contact resistance and oxidation, and clean the contacts if needed
- 2Check the intake for leaks, especially the hoses between the mass air flow sensor and the throttle unit
- 3Check whether the throttle body is dirty, since contaminants disturb the air flow
- 4Clear the code and road test to see whether it returns
- 5If nothing wrong is found, a new mass air flow sensor can be tried
Symptoms you may notice1
- The malfunction indicator lamp comes on
What the fault can affect3
- Boost pressure and air mass are calculated instead of measured
- Rear oxygen sensor control is switched off
- Misfire diagnostics are switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.