The difference while running mine with and without the O2 sensor was
slightly less than 1 mpg.

YMMV (!)

Cya,
Robert

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Jake de Villiers
Sent: Sunday, April 11, 2010 7:17 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: New O2 Sensor now stuttering

That's a charming anecdote David, and I'm sure it brings back peasant
memories, but it still doesn't explain how hydrocarbon emissions rise when
running without an oxygen sensor WITHOUT increasing fuel consumption.

No rush, take your time.

On Sun, Apr 11, 2010 at 4:12 PM, David Beierl <dbeierl@attglobal.net> wrote:

> At 07:04 PM 4/11/2010, Jake de Villiers wrote:
>
>> The reason the emissions are higher is because the mixture goes full
rich.
>> That's why there's a concomitant power increase.
>>
>
> Dear Jake,
> No, really, it doesn't.  The European Digijets didn't even have one --
> couldn't, because they were still using leaded gas.  And I drove Dutiful
> Passage ('84 Westy) all around Scotland in '91 with no sensor and no CAT.
>  When it came to the US (it was delivered in Germany) VWOA installed the
CAT
> and sensor instead of the straight pipe it was delivered with.  No change
in
> mileage.
>
> Yours,
> David
>

--
Jake

1984 Vanagon GL 1.9 WBX 'The Grey Van'
1986 Westy Weekender/2.5 SOHC Suby 'Dixie'

Crescent Beach, BC

www.thebassspa.com
www.crescentbeachguitar.com
http://subyjake.googlepages.com/mydixiedarlin%27