16V auto passat TB - nipple for butterfly bypass?

[timjmcconnell at gmail.com (Timbo)]

I made my car idle with the passat auto TB by adding a scew and a nut
at the stop position of the Throttle plate. This lets me adjust the
closed position of the plate. It's adjustable, VERY simple, and no
vacuum weird crap to leak ever!!

Let me know if you want pics.

Also - you know that the WOT and idle switches are on the pigtail
coming from the TPS, and not on the TPS, right?

--Timbo
On 8/15/06, Mark F. <mk1mark@gmail.com> wrote:
> Hi list,
>
> I'm having trouble establishing an idle on my ABA/JH swap.  I have
> installed a 16v auto passat TB for the idle/WOT switches (the only TB
> I had lying around that had them).  This TB doesn't have an idle
> adjustment screw, so I made my own with a bolt and a plastic "T" -
> plumbed in to take air from the bottom of the rubber boot in front of
> the TB and route it to the nipple on the TB.  The problem is that even
> with a totally clear tube in place ("T" removed) it still won't idle -
> no matter what ignition timing I try.  The idle valve (bolted to the
> back of the intake manifold) tested to work perfectly, and there are
> no vacuum leaks that I can see.  I have attempted to set the ignition
> timing at the lowest idle I can hold with the throttle cable, but
> since the idle switch isn't engaged (and not sending a closed throttle
> signal to the knock box) I doubt it's accurate...
>
> I've double checked the cam timing, and it's dead on.
>
> Any guesses what might be wrong?  Mayhaps that nipple isn't a butterfly bypass?
>
> Thanks,
>
> Mark.
> 75
> 82
> 82 Caddy
> 93 Chevy/Kia 1/2 ton
>
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-- 
Tim McConnell
Electrical / Graphics Specialist
Usually Sideways Rally Team
www.usrallyteam.com

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