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2.0 tfsi - Low pressure fuel pump problem

Zielu Nov 3, 2018

  1. Zielu

    Zielu New Member

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    Audi a4 2.0 tfsi quattro - i have problem with to low fuel pressure on low pressure fuel pomp over 5000 rpm (only 3 bars).
    To check the pump I connected the pump directly to the battery and everything is ok. Over 5000 rpm pump give 5 bars.
    I checked the voltage before the fuel pump controller and behind it under engine load.
    Before - 13.8V
    Behind - 5V to top 9V
    I suppose it is not enough? I connected another pump controller and nothing has changed. I was unlucky and I came across a defective pump module or is it supposed to be like that?

    (Sorry for my English. I hope that everything I wrote understandable)
     
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  3. Baka

    Baka Active Member

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    Might be worth checking if the fuel filter has been changed if the mileage is high?
     
  4. Zielu

    Zielu New Member

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    It is new one
     
    Baka likes this.

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