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2009 Stage 2+ S3 has wiring mods done on throttle body & MAP. Why?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by VAG_BADGER, Sep 30, 2013.

  1. VAG_BADGER
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    VAG_BADGER Ricers in the rear view!

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    [Sep 30, 2013]
    As per the title,

    My Audi S3 F/Lift is Stage 2+. It was bought this way and I've done little to it during ownership. I have just had the front off to upgrade the intercooler and noticed modifications had been done on the MAP sensor wiring & TB wiring? It has been done with the genuine VAG repair plugs so i'm unsure if the wires have been swapped about, could this be anything to do with the remap? Runs great and is a flying machine. No faults in any module etc etc. Just curious really?

    Thanks in advance,

    David
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  3. S3Alex
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    S3Alex Rarely neutral

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  4. H17YD L
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    H17YD L Active Member

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    [Sep 30, 2013]
    Could it of had WMI running on it thats been removed maybe?
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  5. S3Alex
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    S3Alex Rarely neutral

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    [Sep 30, 2013]
    WMI doesn't require any throttle body or MAP sensor alterations.
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  6. H17YD L
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    H17YD L Active Member

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    [Sep 30, 2013]
    Oh I thought some WMI kits worked from the MAP sensor
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  7. S3Alex
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    S3Alex Rarely neutral

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    [Sep 30, 2013]
    Usually at the ECU interface if you buy something like the Aquamist.

    Most of the others are boost pressure linked from the manifold.
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  8. H17YD L
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    H17YD L Active Member

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    [Oct 1, 2013]
    That's it they have there own boost sensor, I thought they tapped into the MAP.
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  9. S3Alex
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    S3Alex Rarely neutral

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    [Oct 1, 2013]
    Exactly.

    AEM's controller takes a tap from the manifold after the throttle body and measures boost directly,so there's no cutting into the wiring.


    The Aquamist system does take a feed from the MAP sensor,but should not require the TB or MAP sensor wiring to be cut about at the sensor end of the system.
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