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Audi A6 2.5 TDI - Won't start after injection pump replacement

Pantheo91 Nov 28, 2019

  1. Pantheo91

    Pantheo91 New Member

    Hello everyone ,

    Recently my Audi A6 2.5 TDI diesel woudn't rev more than 3000 rpm and a weird noise comming out like hitting a piece of steel something , anyway i drove to my mechanic for diagnostics and he told me to change the injection pump so i did , he replaced it with a refurbished one from the same car and now a DTC appeared with code j399 and car won't start up . Does it need some kind of calibrating with the ecu of my car or it should work like that? Have you guys faced anything like that? I would appreciate your replies .

    Thanks in advance

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