MaxxForce EGR Fault Codes

MaxxForce fault code SPN 2659 FMI 21 is commonly associated with low EGR flow or EGR flow performance.

MaxxForce fault code P0401 generally means insufficient EGR flow.

MaxxForce fault code SPN 912 is listed in the EGR category in the supplied file, but the FMI is not provided.

MaxxForce fault code SPN 2791 FMI 12 is commonly associated with an EGR valve actuator or controller fault.

MaxxForce fault code SPN 2791 FMI 14 is commonly associated with an EGR valve initialization, failsafe, or actuator-control fault depending on calibration.

MaxxForce fault code SPN 108 is commonly associated with barometric pressure or atmospheric pressure input, which can affect EGR and turbo calculations.

MaxxForce fault code P0404 generally indicates EGR valve range or performance.

MaxxForce fault code 146 is listed under EGR in the supplied list, but it is not a complete SPN/FMI entry as written.

MaxxForce fault code 368 is listed in the EGR group, but the supplied entry does not include SPN/FMI detail.

MaxxForce fault code 3361 appears in the EGR section of the supplied list, but 3361 can also appear in DEF/aftertreatment contexts on some systems.

MaxxForce fault code 3389 is listed as an EGR-related entry in the supplied file, but the code is incomplete without the manufacturer description or FMI.