Re: 5000/200 Turbo Fuel Injection

[Chris Wilson <chris@maximum-bhp.u-net.com>]

In article <TCPSMTP.17.10.1.9.51.4.2374599595.438897@thevine.net>, in 
mail.Audi_List, wrote:
<snip>

> the atmo port is as you described.  however, mine only has the 3mm
> nozzle, no 6mm nozzle.  the 3mm vacuum connection runs to some type of
> vacuum switch mounted on the firewall next to the coil.  this switch is
> fed with manifold pressure.  btw, i haven't figured out what this switch
> is for.  it is mounted in the same spot as the wastegate valve on the 86
> and up 5kt's.  i have not found it in the bentley or the fiche.  the PN
> is 437 906 283.  anyone have any ideas?  phil?
>  
> frank


I looked at this on the wifes 200 turbo.It appears this valve controls boost 
pressure to the warm up regulator,and hence line control pressure.It is 
controlled electronically from the microswitches on the throttle body.At near 
WOT the valve is actuated,causing a crude form of fuel enrichment.

I am still unsure what signals the ignition module receives.Does it have a 
direct feed from turbo boost,to control on boost retard,or does it merely 
respond to throttle switches,and RPM?


-- 
            Best Regards,  Chris Wilson.

             Gatesgarth Racing Developments
                   Gatley,Cheshire,UK

           http://www.netcomuk.co.uk/~komondor
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