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1.8t aeb inlet pipe?

Discussion in 'A4/S4 forum(B5 Chassis)' started by sam80quattro, Aug 19, 2010.

  1. sam80quattro
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    sam80quattro Member

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    the small pipe maybe 10mm next to the throttle body, what does it connect to? same for the 10mm(ish) pipe underneath the throttle body, whats that for? thanks
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  2. murran
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    murran Active Member

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    picture?
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  3. sam80quattro
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    sam80quattro Member

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    [​IMG]
    not my pic but to the right hand side of where the throttle body bolts on theres a pipe pointing towards you, that 1 and a 1 underneath too. cheers
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  4. sam80quattro
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    sam80quattro Member

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    anyone?
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  5. sam80quattro
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    sam80quattro Member

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    on the crankcase breather there is a t peice. does the small pipe go to the inlet manifold with the check valve inline?
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  6. evilscotsman
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    evilscotsman Space Cowboy

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    picture not working mate

    it might go there, others will come along with the answer. im runnin a tdi the now and not looked at my aeb motor for over a year so cant remember now.
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  7. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    not sure about a 10mm pipe?

    Theres a big outlet on top perhaps 20-25mm which goes to the pancake valve, then one underneath thats for the dump valve recirculation. Perhaps theres also a small one for the N75?

    For the crank breather, theres a T-Piece attached to the Z pipe, with a check valve then a small hose up to the underside of the inlet manifold. The only other connection i can think of on the manifold is the front left corner of the plenum, which has a small nipple takeoff for the dump valve.
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  8. sam80quattro
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    sam80quattro Member

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    the hose from the t-piece to inlet is 1 of the 1s i was talking about, so thats that 1 sorted, where does the charcoal canister vent from/too on aeb? i think that is probably going to be my spare pipe just to the side of the throttle body ??
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  9. murran
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    murran Active Member

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    theres a few pipes round there. need a pic really....... the carcoal canister (vent from the petrol tank) will go to the inlet system somewhere.

    any split/soft hoses/the one way valve in the beather system being gunked up.......... will need replacing as they'll be letting in fresh air in/venting fresh air/causing excess crankcase pressure/subjecting the crankcase to too much vacuum/causing the air mass sensor to be reading wrong.... and will be causing engine lights to be on/causing running faults etc.

    need a picture of the pipe your on about to have any idea.
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  10. sam80quattro
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    sam80quattro Member

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  11. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    One on the left with the rubber pipe goes round to the N80 valve etc, one on the right goes to the breather T piece via the check valve.
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  12. sam80quattro
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    sam80quattro Member

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    thank you very much :D
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