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Cummins ISB CM550 (1990-94) Fault Code: 368 PID: SID 254 SPN: 1078 FMI: 8 Fuel Pump Can Not Reach Commanded Timing

Cummins ISB CM550 (1990-94) Fault Code: 369 PID: 1690 SPN: 1078 FMI: 2 Fuel Pump To Engine Synchronization Pulse Not Recognized

Cummins ISB CM550 (1990-94) Fault Code: 372 PID: 1283 SPN: 1077 FMI: 11 Idle Select High/Low

Cummins ISB CM550 (1990-94) Fault Code: 372 PID: SID 233 SPN: 1077 FMI: 11 Idle Select High/Low

Cummins ISB CM550 (1990-94) Fault Code: 373 PID: 232 SPN: 1077 FMI: 3 Fuel Pump Fuel Shut Off Error

Cummins ISB CM550 (1990-94) Fault Code: 373 PID: SID 233 SPN: 1077 FMI: 3 Fuel Pump Fuel Shut Off Error

Cummins ISB CM550 (1990-94) Fault Code: 374 PID: 1688 SPN: FMI: Fuel Pump Calibration Error

Cummins ISB CM550 (1990-94) Fault Code: 375 PID: 602 SPN: FMI: 2 Engine Control Module (ECM) Fuel Calibration Corrupted

Cummins ISB CM550 (1990-94) Fault Code: 375 PID: SID 254 SPN: FMI: 2 Engine Control Module (ECM) Fuel Calibration Corrupted

Cummins ISB CM550 (1990-94) Fault Code: 376 PID: 1691 SPN: FMI: Fuel Pump rpm and Fuel Error