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Thread: Loss of power on acceleration

  1. #1
    Verified VCDS User
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    Loss of power on acceleration

    Hi guys, My golf mk7 2.0 Tdi is experiencing loss of power after hard acceleration, it feels similar to limp mode but no lights, codes, etc. It goes back to normal when left to roll for a bit. My first thought was the MAF sensor but I have replaced it and no difference. My suspicion is the fuel pump, Vacuum leak or the turbo. car isnít due for a service yet and I used a turbo cleaner additive but no difference again. Is there a way I could use VCDS to check for a vacuum leak, bad fuel pump or bad turbo?

    Any help will be much appreciated, thanks

  2. #2
    Ross-Tech Employee DrPeter's Avatar
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    Hello,

    Depending on what TDI engine is installed, you could see if there is any metal flakes under the N290-Fuel Metering valve.
    See the image below:

    http://wiki.ross-tech.com/wiki/index...CRpumpfail.jpg

    Also there are checks and things you can test with the help of the "Official Factory Repair Information", like compression, etc...


    Hope this helps,

    drpeter

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  4. #3
    Verified VCDS User
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    Change your fuel filter maybe? My tdi would ran like new when I did mine

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  6. #4
    NostraJackAss Jack@European_Parts's Avatar
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    Post an auto-scan and log request vs actual boost to see if deviation issue's exist?

    Is car FOD modified with un-tuning and not posting a limp mode or DTC as a result?

    Is car still under warranty extension or useful life warranty?
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