Ever use an atomizer? The exhaust leak will do about
the same thing with exhaust gasses... (I'm almost done
with my smog class as I type..) Gas will try to escape
out that leak.. but then in the same instance.. act
like the old time atomizer-style perfume bottles, and
suck air in. This will really throuw the O2 sensor for
a huge loop.. making it send a signal to the ECU.
This will cause the vechile to run much leaner than
what the engine really is running. Plus, trust me on
this.. after much ado wiht my own Buick, I finally
discovered a small leak at a weld in my own exhaust
system (in my Buick), causing the exact smae
conditions. Hope this helps some...
Michael aka ECHO
--- Larry Alofs <lalofs@ENTERACT.COM> wrote:
> wb6otg wrote:
>
> > >Chad, all- I'd like to know the solution to this
> as I have the same problem.
> > >I recall my 84 having full power and smooth idle
> while my (1yr) old o2
> > >sensor was disconnected and I awaited the new one
> from BD.  Symptoms
> > >returned with the new properly installed o2
> sensor.
> >
> > An exhaust leak that lets oxygen into the exhaust
> system will cause the o2 sensor to think the engine
> is running lean, causing the computer to make it run
> too rich.
> >
> > Bill
>
> I'm having some trouble accepting the idea that in
> the part of the exhaust system that is presumably
> under some pressure, a leak would cause air to come
> in.
>   Could someone explain this?
>
> Larry A.

=====
MY first VW!
1980 Vanagon L
LOOK a picture!!!http://www.geocities.com/echo207/vanagon.html
Need any general computer help? Computer blonde? E-mail:
echo207@excite.com and I will see what I can do to help.
And a limping 84 buick Skylark

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