Cummins Marine QSB High Fuel Pressure Fault & Alarm Troubleshooting
Fault Code: 449, 553, 2311 (SPN: 157) Injector Metering Rail Number 1 Pressure – Data Valid But Above Normal Operating Range – Most Severe Level. The ECM has detected that fuel pressure in the rail fuel is higher than the … Continue reading Cummins Marine QSB High Fuel Pressure Fault & Alarm Troubleshooting
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