OBD-II code · Powertrain (generic, extended)
P2264 Water in Fuel Sensor Circuit
The ECU detects an electrical fault in the diesel water-in-fuel sensor circuit. Until repaired, water contamination in the fuel filter cannot be detected, risking damage to the high-pressure pump and injectors.
Is it safe to drive with P2264?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyDefective water-in-fuel sensor
- PossibleWiring or connector fault
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Water In Fuel Sensor, Fuel Filter Housing
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.