I have retrofitted a bicycle trip computer into my vanagon.  It can tell
speed, average speed, distance, trip distance, etc.  Nothing about fuel of
course.  Some info here:

http://www.snurl.com/vanagon

Edward

At 09:01 PM 7/23/2004, you wrote:
>20 years ago, my father had an electronic engine monitoring system on
>his '73 Bus. It monitored fuel flow, speed, etc. and could display all
>sorts of
>calculations like Gallons Per Hour, Miles Per Gallon, Distance To Empty,
>and so
>forth and display them on its vacuum-fluorescent display. It additionally
>operated
>as a cruise control unit. Now I've been looking for something similar for
>my '90
>Vanagon, but I can't even think what such a beast would be called! Most of the
>functions of that device are found built into many mid- to high-end cars
>nowadays,
>but I haven't been able to find any aftermarket equivalent. Anyone know of
>such a
>doohickey that one could wire in to a Vanagon?
>
>John Bange
>(just got my first Vanagon this week!)