Powertrain
generic / SAE
P01BF
Fuel Rail Pressure Sensor Circuit Range/Performance Bank 2
Fuel rail pressure sensor on bank 2 reads implausibly compared to commanded pressure. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / BF
Possible causes
- Sensor reading drifted high
- Sensor element aged beyond calibration window low
- Sensor mounting loose - signal damping low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–600 €
- Estimated time: 0.5–2.5 h
- Component: fuel rail pressure sensor b2
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012