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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 2791 FMI 16 (MCM) Smart Remote Actuator 3 (EGR) , Learn Cycle Too Large

DESCRIPTION:
The fault code sets when the motor control module (MCM) detects that the exhaust gas recirculation (EGR) valve position in incorrect.

MONITORED PARAMETER:
EGR position error.

TYPICAL ENABLING CONDITIONS:
Engine running

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always enabled

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
None

VERIFICATION:
Engine idle

PROBABLE CAUSES:
1. If 110-0 is active, repair this first.
2. Check for EGR exhaust leaks at the EGR valve actuator.
3. Remove the actuator cooler lines and fittings, check for kinks/plugs or leaks.
4. EGR valve actuator failure.

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