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1.9TDI Loosing Boost Power

doogleman Apr 6, 2010

  1. doogleman

    doogleman Member

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    Hi Guys,
    Have a 05 1.9tdi losing boost power altogether intermittently. A recycle of the ignition seems to rectify most times. I have yet yo get it onto vag com but I am fairly sure there is no leak on any of the pipes or anything like that.

    Any ideas or known issues please?

    Cheers in advance,

    Dave.
     
  2. jwhat

    jwhat Member VCDS Map User

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    It sounds like it's going into limp mode and that's why the recycle of the ignition rectify's it. Is the car remapped? It could be a bad map or if your sure its not any pipes it could be the turbo on the way out. You really need a vcds/vag-com scan to find out.
     
  3. rowdyboy

    rowdyboy Member

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    I've had a similar problem on a previous car with the 1.9 tdi engine. I took the MAF sensor connector off, cleaned it and hey presto no more faults.
     
  4. doogleman

    doogleman Member

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    Hi Guys,
    No remap and got vag-com result as follows....

    16683 - Boost Pressure Regulation: Control Range Not Reached
    P0299 - 000 - -

    Still have to get onto lift to properly check pipes and will check maf sensor connector as suggested..
     

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