Cummins
Cummins fault code
SPN 1076 / FMI 13
Cummins Fault Code 493: Fuel Pump Calibration Trim Circuit Error
493 on Cummins engines means: Fuel Pump Calibration Trim Circuit Error. The failure mode (FMI 13) is “out of calibration”.
Code details
- Manufacturer
- Cummins
- Applies to
- Cummins QS-series electronic engines
- Fault code
- 493
- J1939 SPN
- 1076
- FMI
- 13 — Out of calibration
- J1587 PID / SID
- S018
- Engine models
- QSC, QSL9
What to do next
- Read active and inactive codes with the OEM service tool and note the occurrence count.
- FMI 13 tells the shop the type of failure to test for: out of calibration.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Related fault codes
- Cummins Fault Code 361 — Fuel Pump Control Module, Fuel Control Valve Circuit - shorted high
- Cummins Fault Code 362 — Fuel Pump Control Module, Fuel Control Valve Circuit - shorted low
- Cummins Fault Code 363 — Fuel Pump Control Module, Fuel Control Valve - mechanically stuck
- Cummins Fault Code 517 — Fuel Metering Solenoid - bad device
Source: Cummins "Diagnostic Fault Codes For Cummins Engines", publication 80-1044 Rev 5/2013, page 15. See also OBD-II codes.