VOLVO
ECM-P217700 - System Too Lean Off Idle - Bank 1. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Show models by year and engine (20)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo S80 (2007–)2010Engine B4204T6 only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2, B4204T6, B4204T7 only
- Volvo S80 (2007–)2015Engine B4164T only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
- Volvo V60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo V60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo V70 (2008–)2010Engine B4204T6 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7 only
- Volvo V70 (2008–)2015Engine B4164T, B4164T2 only
- Volvo XC60 (2009–)2010Engine B4204T6 only
- Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
- Volvo XC60 (2009–)2013–2015Engine B4204T7 only
What does this fault code mean?
The engine control module (ECM) adjusts the fuel injection from the lambda sensor reading to keep the mixture at λ=1. The code is set when that adjustment has to be made close to its maximum in the lower or upper part-load range, meaning the mixture runs too lean. The fault may lie in a leak, the mass air flow sensor, the fuel pressure, the lambda sensor or the injectors.
Possible causes
- Air leakage in the intake system before the turbo
- Damaged mass air flow (MAF) sensor
- Air leakage in the exhaust system
- Low fuel pressure
- Damaged heated oxygen sensor (HO2S)
- Damaged or incorrect type of injectors
What you can do
- 1Check that the fuses are intact; their locations are in the owner's manual or on the fuse box cover
- 2Look for leaks between the mass air flow sensor and the turbocharger, and check the hoses for cracks and loose clamps
- 3Check the exhaust system for air leakage
- 4Check that the mass air flow sensor is not damaged or dirty, and that its connectors and wiring are intact
- 5Think back on how the car has been refuelled; fuel with too high an ethanol content can cause this code, so have a workshop check the ethanol calculation
- 6Replace the lambda sensor if nothing above cures the fault, since a damaged lambda sensor can also set this code
Symptoms you may notice1
- The malfunction indicator lamp lights up or behaves abnormally
General guidance for car owners. Diagnosis on the car can point to a different cause.