What do these wires do?

[Shizzle]

On the side of the throttle body the side you would see when looking into the engine bay as normal the is a three pin plug my top wire of that plug as snapped from the plug can't be fixed what does this top wire do I have spare loom just haven't changed it.with this wire not connected has caused no running problems either.

[tweed]

Does it go in the breather?

[Shizzle]

It's on the throttle body it's self maybe tips not sure.

[chris_d66]

Hi
Its probably the Throttle position sensor plug
pin 3 goes to earth
pin 1 and 2 go back to ECU

Depending on what cable/connection is broken is wont read throttle closed, open or a resistance value on position of butterfly valve.
3 pin plugs with pins can be bought easily, but if your local I may have a plug and the pin removal tools

[thai-wronghorse]

Got a photo mate?

[Shizzle]

Not at the moment is have a look online quick.

[Shizzle]

https://www.google.co.uk/search?q=mk3+golf+16v+engine+bay&client=ms-android-orange-gb&source=android-browser&source=lnms&tbm=isch&sa=X&ei=uiW8UsrvG5SAhAfwlIHACw&ved=0CAgQ_AUoAA&biw=262&bih=431#biv=i%7C3%3Bd%7C3aJbzPKdENhlKM%3A

[thai-wronghorse]

Which picture exactly?

I see Ess-three's superb engine bay amongst that lot.

[Shizzle]

That is so these 3 wires lol.