Powertrain, generic (extended)

P2269 Water in Fuel Condition - Sensor A

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2269 is not a wiring fault but a statement about the fuel: sensor A has detected water. On diesels it means the separator is full; Ram's 2025-26 Cummins 6.7L trucks set it with the MIL, and Stellantis traced a persistent case to incomplete draining, fixed by draining and swapping the sensor's signal and ground pins (TSB 14-004-26). Ford tied P2269 on 2017-18 Super Duty 6.7L trucks to water in connector C3080 and, in other bulletins, to PCM software. GM uses P2269 on flex-fuel petrol engines: if the flex fuel sensor's frequency exceeds 185 Hz in 50 of 63 samples, the fuel's conductivity points to water; Type B in 2018, Type A in 2025. Drain or replace contaminated fuel promptly; water damages injection pumps.

Likely causes

Water separator full and not drained at the service interval
Fuel from the tank or filling station containing water
Residual water after draining or a wet sensor connector faking the alarm
Engine control software needing an update

Symptoms

  • Water-in-fuel lamp or message, on some vehicles also the MIL
  • Rough running, power loss or hard starting if water reaches the injection system
  • Reduced power on some engines to protect the injection system

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–400
Time0.2–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

water in fuel sensorfuel filter

Related codes

P2264P2266P2267P226AP0169

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.