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dsalinas1939
Top Member

USA
1396 Posts
Posted - 09/27/2024 :  11:10:36 AM  Show Profile  Reply with Quote
i have a 2014 c2 with a regen issue code 2639 dpf differential pressure least severe an the regen light is on i did a park regen then drove it light came back so i took dpf off and it was face plugged sent it out got it cleaned put back together ran an scr test that stopped and said burn deposit failed i took around block and the regen light came back on with same code 2639 anyone run into this

Bluenozer
Top Member

Canada
701 Posts
Posted - 11/07/2024 :  09:03:09 AM  Show Profile  Reply with Quote
doc was faced plugged , i would say the DPF needs to be replaced , after you reinstalled you reset both and performed a regen like TS states
OEM trained in wiring and all engine platforms for over 20 years
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