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HELP Emissions warning light

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

  1. AJS
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    AJS New Member

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    [May 2, 2010]
    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.
    #1
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  3. SAiLO
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    SAiLO Enthusiast VCDS Map User

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    [May 2, 2010]
    You scanned it with VCDS?
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