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RPM not constant

micmul Sep 7, 2017

  1. micmul

    micmul Registered User

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    Hey, I have a problem with my Audi A4 B6 2.0 with multitronic (2001). The RPM of the engine is not constant. This is happening when driving at a constant speed, and when accelerating, mainly under 2000 RPM. The range in RPM is about 50 RPM.
     
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  3. micmul

    micmul Registered User

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    See a small movie here:
     
  4. Spatula

    Spatula A4 B6

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    Run Vag-com on it, and let us know what codes come up, if any. It could be something as simple as a dirty MAF. Try unplugging it and running under the same conditions, and see if it still does it.
     
    QuattroCalum likes this.
  5. micmul

    micmul Registered User

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    There are not any codes from the computer. I will try to unplug the sensor today.
     
  6. micmul

    micmul Registered User

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    It has improved a lot now, but it is not perfect. Should I clean the sensor?
     

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  7. QuattroCalum

    QuattroCalum Registered User

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    Try cleaning the MAF first using isopropyl alcohol or electrical cleaner spray as they won't leave any residue. If it's not any better replace the MAF sensor.
     

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