Water in Fuel Sensor Fault
Indicates a problem with the water in fuel sensor circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The sensor that checks for water in the fuel is either malfunctioning or the circuit has an issue, which can lead to engine problems.
What the computer is actually seeing
The engine control module (ECM) detects a fault with the water in fuel sensor circuit, often from unexpected voltage readings.
What a healthy reading looks like
Normal reading is 0.5 to 3.5 volts depending on water presence; above or below this may indicate a fault.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Inspect the wiring and connectors for damage or corrosion
- 2Test the voltage at the water in fuel sensor with the key on, engine off; should be between 0.5 and 3.5 volts
- 3Check for fuel contamination; if present, address the fuel issue first
- 4If voltage is outside the expected range, replace the sensor and retest
- 5Clear the fault codes and monitor for reoccurrence
Common causes
- Damaged wiring or connectors in the sensor circuit
- Faulty water in fuel sensor
- Contaminated fuel causing sensor misreading
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderate severity; while you can drive, it could affect engine performance and fuel system integrity.
Will this code come back after clearing it?
If the issue isn't resolved, yes, the code will return.
Why does this code pair with other codes?
Other codes may represent related issues in the fuel system that can affect sensor performance.
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