DPF Soot Accumulation
•
Over time, the diesel particulate filter accumulates soot in the soot filter. The computer for the engine
monitors the soot level in the DPF.
•
When enough soot accumulates, the computer informs you that it is time to regenerate the DPF.
•
DPF regeneration is a process that heats the DPF to convert the soot to ash.
•
In addition to the warning messages, the computer reduces the power produced by the engine at different
soot-accumulation levels.
Engine Warning Messages—Soot Accumulation
Indication Level
Fault Code
Engine Power Rating
Recommended Action
Level 1: Engine
Warning
Check Engine
SPN 3719, FMI 16
The computer de-rates the
engine power to 85%.
Perform a parked regeneration
as soon as possible; refer
to
(page 33)
.
Level 2: Engine
Warning
Check Engine
SPN 3719, FMI 0
The computer de-rates the
engine power to 50%.
Perform a recovery regeneration
as soon as possible; refer to
(page 33)
.
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