7849 SPN Fault Code

Name:

Aftertreatment 2 SCR System Sulfation Level

Description:

Indicates the sulfur level in the SCR system for aftertreatment 2. 100% level could be the regeneration trigger level (and if conditions are not favorable for regeneration, sulfation loading can continue beyond 100%). During normal operation and regeneration a value 0% will indicate a fully regenerated SCR system. Values of 25%, 50% and 75% will indicate the general level of sulfur prior to the 100% level where regeneration could be needed.

7849 spn fault code name is Aftertreatment 2 SCR System Sulfation Level. If you don't take the time to look into 7849 spn fault when it arises, it can add up quickly. One small issue like 7849 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: The name and description of 7849 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.

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