VOLVO
ECM-217C - Long-term fuel trim, bank 2. Signal 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 (10)
- Volvo S60 (2001–2009)2005–2006Engine B5204T5, B5244T4, B5244T5, B5254T2, B5254T4 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)2006Engine B5204T5, B5244T5, B5254T2, B5254T4 only
- Volvo V70 XC / XC70 (2001–2007)2005All engines except: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Engine B5244T4, 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 oxygen sensor correction of the fuel mixture on bank 2 has nearly reached its upper limit at idle, which means the engine control module has to add more fuel than normal. The air and fuel are not in balance, and the fault can lie in an air leak in the intake or exhaust or in a damaged oxygen sensor.
Possible causes
- Intake air leakage
- Air leakage in the exhaust system
- Damaged heated oxygen sensor on bank 2
What you can do
- 1Check the intake system for leaks, including the hose to the brake booster and the EVAP valve hoses
- 2Check that hoses and connections on the intake side are secure and intact
- 3Check the exhaust system for leaks at joints and seams
- 4Have a diagnostic tool? Read the mass air flow correction factor with the engine at idle and check that the value looks plausible
- 5If the fault remains, have a workshop look for leaks with smoke testing and check the bank 2 oxygen sensor
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.