Understanding Low Power Troubleshooting

How engine loading and propellers interact with vessel performance When troubleshooting a LOW POWER symptom, or a low RPM issue on any high performance marine diesel that uses mechanical fuel injection (meaning NO Electronics, or a true diesel that can … Read More

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 … Read More