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Fuel Economy and warm start.

Discussion in 'A3/S3 Forum (8L Chassis)' started by sharpy, Dec 2, 2009.

  1. sharpy
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    sharpy Audi S3 8L

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    My S3 has recently started playing up. It only seems to be when i pop into a shop or something and want to restart it again after only a couple of minutes. Also the fuel economy has dropped slightly.
    I am assuming this is due to some temperature unit telling the car its cold all the time and therefore flooding the engine on restart. Can anyone give me more of a specific idea of what is going on????
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  2. Westy
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    Westy Double Dark Side! Diesel & 8P

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    Does your coolant temp gauge get up to 90 degrees and stay there? If not you might have a temp sensor or thermostat problem.
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  3. sharpy
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    sharpy Audi S3 8L

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    Yes temp goes to 90 degrees and stays there just fine.
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  4. Sandip
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    Sandip Well-Known Member

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    I had the same issue, i'd say its the pre cat lambda sensor, does it smell a little rich and perform a bit poor when its cold?
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  5. sharpy
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    sharpy Audi S3 8L

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    It definately floods when starting from warm, runs lumpy until fuel clears.
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