Powertrain
generic / SAE
P228F
Fuel Pressure Regulator A Exceeded Learning Limits - Too High
The adaptive learning offset for fuel pressure regulator A has reached the lower limit. Long-term drift indicates progressive wear of the regulator or pump.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number2 / 8F
Possible causes
- Long-term drift upward high
Symptoms
- Check engine light on
- Hard start, no start, or stalling under load
- Power loss especially at high load or rpm
- Possible long cranking time
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–2500 €
- Estimated time: 1.5–6 h
- Component: fuel pressure regulator
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012