Powertrain
generic / SAE
P239C
Diesel Intake Air Flow B Control System High Air Flow Detected
With diesel intake air flow valve B commanded closed the measured airflow is above the calibrated threshold - valve does not seat or position sensor offset.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number3 / 9C
Possible causes
- Valve does not seat fully high
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 200–1000 €
- Estimated time: 1–4 h
- Component: diesel intake air flow b
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012