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HELP Emissions warning light

Discussion in 'A3/S3/Sportback (8P Chassis)' started by AJS, May 2, 2010.

  1. AJS

    AJS New Member

    Apr 4, 2010
    Likes Received:
    I have had the emissions warning lamp come on a few times recently. I have taken the car back and the fault shows LEAN FUEL MIXTURE.
    2007 2.0 Turbo S3.
    I took the garages advice and filled the tank with super plus unleaded, 99 octane rating. After half a tank the emissions light is on again. The car feels flat, no power at all when light is on. The light is on constant.
    I can rest the light by disconnecting the battery for a few seconds and i get full power back. Getting fed up now, light is back on after numerous tanks of 99 octane fuel.
    Any ideas what the fault could be. I am hoping its a sensor before or after the Cat. Could it be anything more serious.
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  3. SAiLO

    SAiLO Well-Known Member
    VCDS Map User

    May 7, 2009
    Likes Received:
    You scanned it with VCDS?

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