SPN 97 - FMI 15 (Fault Code 418)

SPN97 FMI15 (Automotive Application)
Water-In-Fuel Indicator - Data Valid but Above Normal Operational Range - Least Severe Level

Water-In-Fuel Circuit

CODES:
Fault Code: 418
PID(P), SID(S): P097
SPN: 97
FMI: 0/15
Lamp: Amber (Maintenance flashout)

REASON: Water-In-Fuel Indicator - Data Valid but Above Normal Operational Range - Least Severe
Level. Water has been detected in the fuel filter.

EFFECT: Possible white smoke, loss of power, or hard starting.

Circuit Description:
The water-in-fuel sensor is attached to the fuel filter. The water-in-fuel sensor sends a signal to the ECM when a set volume of water has accumulated in the fuel filter. The water-in-fuel circuit contains two wires: A ground wire and signal wire.

Component Location:
The water-in-fuel sensor is integrated into the bottom of the OEM supplied suction fuel filter. The OEM supplied fuel filter is located on the intake side of the engine. For marine applications the water-in-fuel sensor is mounted in a filter housing which contains a serviceable element. The filter housing location will vary with each OEM.

Shop Talk:
The water-in-fuel is integrated into the fuel filter. It is automatically replaced whenever the fuel filter is replaced. For marine applications the sensor is not integrated into the fuel filter and is a serviceable item.


Read More:
SPN 608 - FMI 2 (Fault Code 412)
SPN 100 - FMI 1 (Fault Code 415)









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