Powertrain
generic / SAE
P018F
Fuel System Over Pressure Relief Valve Frequent Activation
The mechanical pressure relief valve has activated repeatedly within a short window — pressure regulation is failing more than once.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 8F
Possible causes
- Regulator intermittently sticking high
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 250–2000 €
- Estimated time: 1–6 h
- Component: pressure relief valve
- Component: fuel pressure regulator
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012