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Losing speed

Discussion in 'A3/S3 Forum (8L Chassis)' started by ZeroOne, Mar 6, 2013.

  1. ZeroOne

    ZeroOne New Member

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    Hi friend! I have Audi A3 8l 1.9 TDI 66kw 1999year..i have a problem with speed.. when the accelerator past 3 (1/minx1000), the engine loses the power, the accelerator pedal is passive..like the car is choking..
    p.s sorry for my english..
     
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  3. Cobra88

    Cobra88 Active Member
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    Change the Diesel filter and scan for fault codes with VCDS ;)

    Could be blocked Fuel fiter
    Blocked Catalyst
    No vent in fuel cap etc etc
    or many other faults

    Scan it for codes and see what it tells you is broken
     
  4. ZeroOne

    ZeroOne New Member

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    I make diagnostic, and there is no trouble codes.. I forget to say that when it shows the problem, I power off the engine..and is good...but when again past 3 rpm again same problem..
     
  5. Cobra88

    Cobra88 Active Member
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    Sounds like your overboosting and hitting limp mode
    but odd to have no fault code

    can you do an auto scan in VCDS and post the log in here ?
    Regards
    Rick
     
  6. ZeroOne

    ZeroOne New Member

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    IMG_20130315_174617.jpg
    I made diagnostic with other kit and shows P1557 (Charge Pressure Control: Positive Deviation), and in AutoData shows this.. but I can't find this sensor on engine..can you help me? with some picture or etc..
     
  7. ZeroOne

    ZeroOne New Member

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    BUMP!
     

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