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2.0 tfsi - Low pressure fuel pump problem

Zielu Nov 3, 2018

  1. Zielu

    Zielu New Member

    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

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

    Zielu New Member

    It is new one
    Baka likes this.

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