High Idle Regeneration Aborted 3713/31-Low Regen Temperature

The fault indicates that the High Idle Regeneration (HIR) was aborted due to the Diesel Oxidation Catalyst (DOC) outlet temperature not reaching the expected target temperature to complete a HIR. If there are any other regeneration or fuel system related faults address those first. The CEL and MIL lamp will remain ON until a fault is resolved or a successful regeneration is completed.


Possible Causes:

  • Low Fuel Compensation Pressure
  • Exhaust Leaks
  • Fuel Leaks
  • Sticking Hydrocarbon Doser Injector valve(high doser line pressure)
  • DOC outlet temperature not responding

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