P2265
Water in Fuel Sensor Circuit Range/Performance
The ECU detects that the water-in-fuel sensor signal is implausible compared to operating conditions. The reading does not change as expected during fuel filter purge or warm-up.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Sensor drift or contaminationCommon
- Sensor element aged beyond calibration windowLess likely
- Sensor mounting loose - signal dampingLess likely
Parts involved
- Water In Fuel Sensor
- Fuel Filter Housing
P2265 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.