Detroit DD16 EPA07 (2007-09) Fault Code: SPN 2791 FMI 7 (MCM) Exhaust Gas Recirculation Actuator, Failsafe Mode, Motor ON
NOTE: Please see the step by step troubleshooting procedures for this specific code.
PROBABLE CAUSES:
1. If any voltage codes exist, fix those first.
2. EGR valve actuator pull rod.
3. EGR actuator.
4. EGR valve.
5. Wiring between the EGR actuator harness and the ECM.
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