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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 97 FMI 4 (MCM) Water-In-Fuel Circuit Failed Low

NOTE: Water-in-Fuel (WIF) sensor circuitry differs for engines equipped with three-filter fuel systems and those equipped with two filter fuel systems. There are also slight differences between two filter fuel systems, KM63 GEN2 is the GHG14 variant and Km59 GEN1 is the EPA10 variant.

NOTE: Please see the step by step troubleshooting procedures for this specific code.

PROBABLE CAUSES:
1. WIF Sensor Connector/Harness.
2. WIF Sensor.