OBD-II code · Powertrain (generic)
P008B Low Pressure Fuel System Pressure - Too High
The low-pressure fuel pressure is above the expected value. Often caused by a stuck-closed fuel return valve or a faulty pressure regulator.
Is it safe to drive with P008B?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPressure regulator stuck closed
- PossibleReturn line blocked
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Low Pressure Regulator, Fuel Return Valve, Low Pressure Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.