Cummins Fault Code

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SPN 100 FMI 1

Engine Shutdown

System

Lubrication

Symptom

Engine Shutdown

Diagnosis & fix steps

LOGIC: Engine Oil Pressure Low (Critical). ACTION: Check oil level immediately. If full, verify with a mechanical gauge.

Red Seal field insights

Logic: ECM sees pressure below the 10psi protection limit. FIX: Often a failed sensor or a plugged oil cooler.

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