Loss Of Power — Possible Fault Codes
Found 7 fault codes associated with loss of power. Codes are sorted by severity — check STOP ENGINE codes first.
⚠️ 4 STOP ENGINE-level codes associated with this symptom. Do not continue driving.
SPN 1569 FMI 31
Engine Protection Torque Derate
Cummins ISX15 • Component: Engine Control Module (ECM) • J1939
SPN 102 FMI 18
Intake Manifold Pressure critically low
Cummins ISX15 • Component: Turbocharger / Charge Air System • J1939
SPN 1077 FMI 14
High Pressure Fuel Rail Pressure
PACCAR MX-13 • Component: High Pressure Fuel Pump / Rail • J1939
SPN 164 FMI 18
Fuel Rail Pressure critically low
Detroit Diesel DD15 • Component: High Pressure Fuel System • J1939
SPN 641 FMI 5
VGT Turbo Actuator
International A26 • Component: Variable Geometry Turbocharger (VGT) Actuator • J1939
SPN 174 FMI 0
Fuel Temperature
Volvo D13 • Component: Fuel Temperature Sensor / Fuel Cooler • J1939
SPN 107 FMI 16
Air Filter Restriction excessive
Volvo D13 • Component: Air Filter / Air Intake System • J1939
⚠️ Diagnostic Note:
Symptoms can have multiple root causes. Always verify with a diagnostic scan tool before replacing parts. The fault codes listed above are possible matches for loss of power based on SAE J1939/J1587 fault code definitions and OEM service documentation.