Deutz Fault Code
Free · no signupSPN 97 FMI 3
Water in Fuel lamp on; Potential derate to protect injectors.
System
Not specified
Symptom
Water in Fuel lamp on; Potential derate to protect injectors.
Diagnosis & fix steps
Water in Fuel Sensor High
LOGIC: Sensor detects high conductivity in the fuel bowl (Open circuit).
ACTION: Drain the primary fuel filter bowl. Check for water. Inspect sensor pins for corrosion.
FIX: Drain fuel/water separator; replace sensor if it won't clear.
Red Seal field insights
If the bowl is empty and the code is still there, unplug it. If the code stays "High," you have a break in the signal wire.
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