Originally posted by 99CSVT:

TestID $41 Fail
ComponentID $12
Fail High
FFCE not <= 0200
Delta Pressure for
Downstream DPFE
Hose Test



Either the EGR flow is low from partial blockage, or the DPFE is going out. Neither will register as an inoperative EGR valve since the DPFE is still reading a change at the secondary port, it just does not pull down low enough.

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