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Thread: Reverse DPF removal

  1. #1
    New User
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    Nov 2019
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    Reverse DPF removal

    I recently bought VW passat 2.0 tdi and it turns out that the dpf was removed (I've noticed the dpf has distinct weld lines around it). I intend to replace it with new one.
    My question is whether I can update the ecu to read the dpf again (the related sensors) using VCDS. And if so, how?

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Jan 2014
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    Assuming that the ECU software has been modified, which is a pretty safe assumption since I can't think of any other way to make an ECU happy about a missing DPF any other way, no, you can't do this using VCDS. You'll need to find someone who can flash stock software back into the ECU.

    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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