Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 21 (MCM) Charge Air Outlet Temperature Drift (High Box)
NOTE: If codes for EGR system active, fix those first.
PROBABLE CAUSES:
1. Air intake system failure (charge air cooler leaks, intake piping).
2. Charge air outlet temperature sensor.
3. Charge air outlet temperature sensor harness/connector.
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 20 (MCM) Charge Air Outlet Temperature Drift (Low Box)
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Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 4 (MCM) Intake Air Temperature Circuit Failed Low
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 3 (MCM) Charger Air Cooler Outlet Temperature Circuit Failed High
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