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  1. mani2911

    mani2911 New Member

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    Hi I am struggling with PO401 code with no power loss since theee months,somebody told me to regenerate egr valve,
    It is a lot cheaper then replacing one
    Any recommendations will be appreciated.
    Audi A4 2.0 ‘tdi. 2013
     
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  3. RJ-8V

    RJ-8V Active Member Team Daytona Audi A3 S-line owners group

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    Clean the EGR valve and then do a calibration of the valve.

    A3 8V Facelift Limousine
     
  4. mani2911

    mani2911 New Member

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    Thanks,don’tknow what is collaboration of egr but I have already cleaned egr valve and throttle body
     
  5. RJ-8V

    RJ-8V Active Member Team Daytona Audi A3 S-line owners group

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    Did you delete the faultcode?

    A3 8V Facelift Limousine
     
  6. mani2911

    mani2911 New Member

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    Yes boss did that already,comes back on
     
  7. RJ-8V

    RJ-8V Active Member Team Daytona Audi A3 S-line owners group

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    Then do a calibration with vcds

    A3 8V Facelift Limousine
     

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