Cummins ISL CM850 (2003-06) Fault Code: 2348 PID: 27 SPN: 27 FMI: 13 EGR valve failed automatic calibration procedure – out of calibration.
Cummins ISL CM850 (2003-06) Fault Code: 2348 PID: 27 SPN: 27 FMI: 13 EGR valve failed automatic calibration procedure – out of calibration.
A possible cause of this fault could be an EGR valve assembly internal failure causing the EGR valve to not close fully.
When troubleshooting inactive counts of this fault code, running the EGR Valve Test in INSITE? electronic service tool could help identify a stuck EGR valve.
Possible repairs:
1)Replace the engine harness.
2)Replace the EGR valve assembly.
3)Replace the ECM.
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