Date:         Fri, 31 Oct 2003 08:31:39 -0600
Reply-To:     Joel Walker <jwalker17@EARTHLINK.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Joel Walker <jwalker17@EARTHLINK.NET>
Subject:      Re: Question About ECU Programing
Content-Type: text/plain; charset="iso-8859-1"

> Au contraire, Senor Chris.  Please read...
>
> <<http://www.vanagonparts.com/relearn.html>>

only trouble is, nowhere in any of that 'relearn' section does it
mention vanagon or Digifant or Digijet.

and nowhere in the Digifant or Digijet literature or test manuals
does it mention anything about learning or relearning.
the ECU's on the vanagons don't learn how you drive ...
they have a digital memory 'map' of how long to spray the
injectors based on input from engine speed, engine temperature,
intake air temperature and volume, oxygen sensor output, and
throttle position.

that's it. pull the plug on the battery and you lose nothing ...

the memory map is still there. the program in the ecu takes the
injector timing from a total of 256 operational data points. and
based on those data points, the injection timing can be altered
between a theoretical 65,000 different opening duration points.

remember, the Digijet was developed as a 'refinement' of the
Bosch L-Jetronic analog fuel injection system.
and the Digifant system was a refinement of the Digijet ... same
basic system with a the digital map (and a different idle control
system).

joel