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LIMP MODE

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by hubbo1, Jul 12, 2012.

  1. hubbo1

    hubbo1 Member

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    a4 2.0 tdi auto 2005
    while accelerating the car lost power(limp mode?) no warning lights so pulled over ignition off-ignition on and drove fine again.
    there was a fault code-overboost-on diagnostic, any ideas?
     
  2. wayne77

    wayne77 Member

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    this could be a number of things but i would start with looking for a split vaccum pipe or maybe one has popped off
     
  3. NHN

    NHN Retrofitter - Audi - VW - Skoda - Seat
    Site Sponsor VCDS Map User

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    Mileage?
     
  4. Administrators

    Administrators Administrator
    Staff Member Administrator Audi A2 Crash King

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    As stated it could a host of things... Airmass, Leak sticking VVT. At 7 years old and if the Airmas hasn't been done that's were I would start. To see if any of the pipes are leaking have a look and see if there is any oil leaking out of them. Your car has a small amount of oil being blown around all the time and a good sign of an air leak is the oil getting past the joints.

    Best of luck

    A
     

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