OBD-II code · Powertrain (generic)
P000F Fuel System Over Pressure Relief Valve Activated
The mechanical pressure relief valve on the fuel rail has opened due to overpressure. Indicates a malfunction of the rail pressure regulation that drove pressure beyond the safe limit.
Is it safe to drive with P000F?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPressure regulator valve stuck closed
- PossibleRail pressure sensor reading low
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Likely to fail
- Parts involved
- Pressure Relief Valve, Fuel Rail, Fuel Pressure Regulator, Fuel Rail Pressure Sensor
Related codes
- P000CA Camshaft Position Slow Response Bank 2
- P000DB Camshaft Position Slow Response Bank 2
- P000EFuel Volume Regulator Control Exceeded Learning Limit
- P0010"A" Camshaft Position Actuator Circuit (Bank 1)
- P0011"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
- P0012"A" Camshaft Position - Timing Over-Retarded (Bank 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.