RE: Setting CIS fuel mixture

["Chris DeLong" <green536@hotmail.com>]

The fuel mixture hole is not after the airflow sensor plate. It allows air 
to enter between the air filter and the sensor plate.


>It is a vacuum leak (you have a hole in the intake somewhere after the
>airflow plate) but it doesn't seem to behave as one.  Are you saying that
>sometimes the mixture doesn't change when you plug the hole?  That seems
>kind of odd - it should be pulling in just a little extra air (whatever you
>can fit through that little hole) when the plug is out, so the mixture
>should get a little more rich when you plug it.
>
>The plug was gone from my '84 when I got it, and it ran great, although I
>never had the CO content checked, and I never plugged the hole.
>
>Aaron
>'82 Scirocco
>'84 Scirocco
>'70 Bug - Hibernating
>'87 Jeep Cherokee 4.0
>
> > -----Original Message-----
> > From: owner-scirocco-l@scirocco.org
> > [mailto:owner-scirocco-l@scirocco.org]On Behalf Of Dave Ewing
> > Sent: Wednesday, September 13, 2000 8:06 AM
> > To: Scirocco List
> > Subject: Re: Setting CIS fuel mixture
> >
> >
> > No offense Dan, I would never mess up a air plate to pull the
> > plug out.  All
> > you do is tap the plug itself with some type of self tapping
> > screw or even
> > drill a tiny hole in it then thread in a tiny screw and pop
> > it out.  When
> > you drill a hole into either side of it (and this differs
> > between cars) this
> > can create a vaccum TYPE leak.  There are cars that when I
> > adjust the air
> > fuel mixture, the mixture will actually change once I plug
> > the adjustment
> > hole.  I am not sure why, but it does.  This makes me believe
> > that on some
> > cars that the reason the adjustment hole is plugged is more
> > than to just
> > keep people from messing with it.  I hope I'm right on this
> > and I hope this
> > helps.
> >
> > Dave
> >
> > > I just nearly botched this the same way myself.  I ended up
> > by drilling
> > two holes, either side of the plug.  This way I could grab
> > the with some
> > needle nose pliers.  It looks like ass, but it got the thing apart.
> > >
> > > I was really not looking forward to dismantling the whole
> > fuel distributor
> > for that little plug...
> > >
> > > In hind-sight, you might try tapping the plug down GENTLY
> > to dislodge it.
> > Once mine moved a little, it pulled right out.
> > >
> > >
> > > Dan Brideau
> > > http://www.hobbyetc.com/scirocco/
> > >
> > >
> > >
> > >
> > >
> > >
> > > At 01:28 PM 9/5/00 -0400, EuroVWtek@aol.com wrote:
> > > >Dear List,
> > > >
> > > >     I went to set up my fuel mixture on my 85 8v and I
> > found that the
> > > >anti-tampering plug was still stuck in the hole where the
> > 3mm allen bolt
> > is.
> > > >So then, I did as the Bentley said and drilled a 3/32 in.
> > hold into the
> > > >aluminum only;not the hard steel bottom, and then I
> > threaded in a sheet
> > metal
> > > >screw which is supposed to be used to extract the plug
> > with. Well, after
> > > >getting the screw in there, I then proceeded to pull
> > straight up on the
> > screw
> > > >head with pliars. The plug did NOT want to budge. Finally
> > after more
> > vigorous
> > > >pulling, the screw ripped out of the soft aluminum and now
> > I am afraid I
> > have
> > > >too little aluminum left to be able to get another screw to bite in
> > there.
> > > >HELP! Hasa ny one else had to get one of these out? If so, did you
> > encounter
> > > >the same problem? Your time and help is much appreciated.
> > > >
> > > >Thanks,
> > > >
> > > >Tim Fritz
> > >
> > >
> > >
> > > --
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> > >
> >
> >
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>
>
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>


Chris DeLong
ICQ#45030867
Seattle, WA USA
'80 16V Rag
'78 Scirocco (for sale)
'82 GLI
'84 Jetta Diesel (for sale)
'80 Jetta
'80 'Vert
'65 Bus (ugly, but good for campin' W/toaster oven)
'61 17 Window


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