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Model specific boards => Golf mk3 => Topic started by: DCmk3 on 01 March 2013, 15:58

Title: Vaccum line & Throttle body help needed
Post by: DCmk3 on 01 March 2013, 15:58
So I have a few questions, firstly, what does this thin line do? Or where does it go to?

(http://i433.photobucket.com/albums/qq59/crayzie/pa1_zps20fce137.png)

Isn't this gap a little large when the throttle is closed?

(http://i433.photobucket.com/albums/qq59/crayzie/Photo0583_zps115dd140.jpg)

And I hear a "rattle/knock" sound from the marked area when I tilt the throttle body from side to side as if something is loose inside..
I guess that's not normal?  :undecided:

(http://i433.photobucket.com/albums/qq59/crayzie/pa2_zpsa605059f.png)
Title: Re: Vaccum line & Throttle body help needed
Post by: Screech16v on 01 March 2013, 19:00
That vac line controls the flap for the freshair/recurculate  switch, has somebody tried port the throttle body  as it does look like a big gap around the butterfly ,does it have a fast idle?
Title: Re: Vaccum line & Throttle body help needed
Post by: DCmk3 on 01 March 2013, 19:38
So that's why the recirculate switch doesn't work.. someone managed to actually snap the little plastic thing which that pipe connects to at the firewall..  :sad:

Unfortunately that picture makes the gap look extremely exaggerated compared to how it actually is.
If I hold it up in the light, I can see light around nearly the entire butterfly, but not enough to really see through.

I will try and get a better picture in the morning.



The idle is 900-950 on average, although on idle it seems to sound as if it has a cam, like a constant lumpy idle as the Mk3's usually do on warm-up.