Duaparts Blog

Beside buying parts, we are helping the trucking industry with the latest information about new technologies, trends and a ton of repair manuals

SPN 2791 FMI 13 – Smart Remote Actuator 3 (EGR), Calibration Error Fault Code (Symptoms, Causes & Fix)

The SPN 2791 FMI 13 fault code indicates a calibration error with the Smart Remote Actuator 3, specifically related to the Exhaust Gas Recirculation (EGR) system. This diesel engine fault code suggests that the Engine Control Module (ECM) has detected a discrepancy in the expected calibration of the EGR actuator, which could affect the engine's emission control system. What SPN 2791 FMI 13 Means W read more

SPN 2791 FMI 12 – Smart Remote Actuator 3 (EGR), Valve frozen Fault Code (Symptoms, Causes & Fix)

The SPN 2791 FMI 12 fault code indicates a problem with the Smart Remote Actuator 3, specifically that the Exhaust Gas Recirculation (EGR) valve is frozen. This diesel engine fault code is triggered when the Engine Control Module (ECM) detects that the EGR valve is not moving as expected, potentially due to mechanical obstruction or actuator failure.What SPN 2791 FMI 12 MeansThe SPN 2791 FMI 12 fa read more

SPN 2791 FMI 11 – Smart Remote Actuator 3 (EGR), Common Failure Fault Code (Symptoms, Causes & Fix)

The SPN 2791 FMI 11 fault code is a diagnostic trouble code indicating a common failure in the Smart Remote Actuator 3, specifically related to the Exhaust Gas Recirculation (EGR) system. This diesel engine fault code suggests that the Engine Control Module (ECM) has detected an issue with the EGR actuator's performance, which could affect the engine's emission control and efficiency. What SPN 279 read more

SPN 2791 FMI 9 – Smart Remote Actuator 3 (EGR), No Communication Fault Code (Symptoms, Causes & Fix)

The SPN 2791 FMI 9 fault code is a diesel engine diagnostic trouble code indicating a communication issue with the Smart Remote Actuator 3, specifically related to the Exhaust Gas Recirculation (EGR) system. This code suggests that the Engine Control Module (ECM) is not receiving the expected signals from the EGR actuator, which can affect engine performance and emissions control. What SPN 2791 F read more

SPN 2791 FMI 7 – Smart Remote Actuator 3 (EGR), Failsafe Mode, Motor Off Fault Code (Symptoms, Causes & Fix)

The SPN 2791 FMI 7 fault code is a diesel engine diagnostic trouble code indicating an issue with the Smart Remote Actuator 3, specifically related to the Exhaust Gas Recirculation (EGR) system entering failsafe mode with the motor turned off. This fault suggests that the Engine Control Module (ECM) has detected a malfunction preventing the EGR actuator from operating correctly, which can affect e read more

SPN 2791 FMI 2 – Smart Remote Actuator 3 (EGR), Position Deviation Error Fault Code (Symptoms, Causes & Fix)

The SPN 2791 FMI 2 fault code indicates a position deviation error in the Smart Remote Actuator 3, specifically related to the Exhaust Gas Recirculation (EGR) system. This diesel engine fault code suggests that the Engine Control Module (ECM) has detected a discrepancy between the commanded and actual position of the EGR actuator.What SPN 2791 FMI 2 MeansThe SPN 2791 FMI 2 fault code is triggered read more

SPN 2659 FMI 18 – EGR Flow Target Error Diagnostic - Low Flow Fault Code (Symptoms, Causes & Fix)

The SPN 2659 FMI 18 fault code is a diesel engine fault code indicating an EGR Flow Target Error due to low flow. This diagnostic trouble code is triggered when the Engine Control Module (ECM) detects that the actual EGR flow is significantly lower than the target flow. This discrepancy suggests a problem within the EGR system, which is crucial for reducing NOx emissions by recirculating a portion read more

SPN 2659 FMI 0 – EGR Flow Target Error Diagnostic - High Flow Fault Code (Symptoms, Causes & Fix)

The SPN 2659 FMI 0 fault code is a diesel engine fault code indicating an Exhaust Gas Recirculation (EGR) Flow Target Error due to high flow. This diagnostic trouble code is triggered when the Engine Control Module (ECM) detects that the actual EGR flow exceeds the expected target, suggesting a potential issue with the EGR system components or their control. What SPN 2659 FMI 0 Means SPN 2659 FMI read more

SPN 2646 FMI 5 – Digital Output 4 02 Circuit Open Fault Code (Symptoms, Causes & Fix)

The SPN 2646 FMI 5 fault code is a diesel engine diagnostic trouble code indicating an open circuit condition in Digital Output 4 02. This code is typically associated with the aftertreatment system, where the Engine Control Module (ECM) detects a lack of continuity in the circuit, suggesting an electrical fault.What SPN 2646 FMI 5 MeansWhen the SPN 2646 FMI 5 fault code appears, it signifies that read more

SPN 2646 FMI 4 – Digital Output 4 02 Circuit Failed Low Fault Code (Symptoms, Causes & Fix)

The SPN 2646 FMI 4 fault code is a diagnostic trouble code indicating a 'Digital Output 4 02 Circuit Failed Low' condition in a diesel engine. This fault code suggests that the Engine Control Module (ECM) has detected a low voltage condition in the circuit responsible for controlling the Diesel Exhaust Fluid (DEF) dosing valve. When this circuit fails, it can affect the aftertreatment system's abi read more