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Hi All,
    I have made some updates to the web site  that hosts the digifant tool.
http://taos.midwest.net/vw   They  include a diagnostic aid / fact  sheet
for using the digifant tool with normal voltage readings.   A picture of the
digifant tool enclosed in a 4x6x2 inch black box.  A wiring diagram.  Many,
many  have been asking for a wiring diagram.  I also, with helpful question
/ dialog with Bill Dummitt from STL,  made a wiring change so the throttle
switch LED is lit when the switch is made.  I had originally used negative
logic for the switch and finally saw the light / LED.
    This tool makes digifant problem analysis so much easier. I can't stress
this enough.  If your temp2 sensor is suspect it is so easy to use a  meter
to  check its operating voltage. The various digifant sensors / devices /
can be tested dynamically for normal operation or anomalies .   The AFM
wiper , Temp 1 , and oxygen sensor are similarly  a  piece of cake to
diagnosis. The  6 LEDs do a good job of indicating the  status of digital
controls , switches , etc.    The parts cost are between $20-$30 from your
FLEPS (friendly local electronic parts store) .   I prefer you have the
pleasure of making your own digifant tool.   However if  you desire to buy
one ready to go I will make it  a few for around $50. Thanks for your
interest.

Darrell Boehler
Makanda Illinois