OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

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.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number2 / 65

Possible causes

  • Sensor drift or contamination high
  • Sensor element aged beyond calibration window low
  • Sensor mounting loose - signal damping low

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 60–250 €
  • Estimated time: 0.3–1 h
  • Component: water in fuel sensor
  • Component: fuel filter housing
  • MIL / check engine light

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication