Not exactly your WBXer system but very well explained in one document.
http://www.texas912.org/912E%20Tech%20Data/912E%20FI%20Technical%20Manual.pdf

Stan Wilder
Engine Ceramics
214-352-4931
www.engineceramics.com

----- Original Message -----
From: "Joy Hecht" <jhecht@ALUM.MIT.EDU>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, June 06, 2005 9:38 PM
Subject: O2 sensors - OEM or after-market?

> It looks like I need a new O2 sensor.  Was wondering what people think on
> brands, given the really major differences in price between Bosch and
> others.
>
> Also, if anyone knows of a clear write-up that explains the different
> components of the fuel system - i.e. the roles of the different things
that
> could be wrong if the van is running rich, with diagrams indicating what's
> what, and some notion of how one determines which of the many problems
could
> explain why a van is running rich - could you please refer me to it?
>
> Thanks!
>
>
> Joy
>
> ****************************************************************
> Joy Hecht
> and Matilda, 1989 Burgundy Vanagon
>
> For musings about life and the vanadventures:
> http://users.rcn.com/jhecht/gypsy
>
> ****************************************************************
>
>
> --
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