Volks,
The holiday Monday gave me some time to do some tinkering and I have the
answer for the previous questions on the 25 pin Digifant connectors... The
25 pin connector that is on the Vanagon Digifant I computers, is the same
for the Digifant II (1989 to 1992 Golf and Jetta), CIS-E O2 Sensor Unit
(1985 to 1988 GTI and GLI), no doubt it is the same for most other 25 pin
ECUs.  I have lots of these connectors here if anyone is interested in them.

Here are the specs for the Digifant II system found on the 1989, 1990,
1991, 1992 Golf and Jetta

Volkswagen Digifant II Computer
Mfg by Siemens - VW Part Number 037 906 022 FH
25 Pin Connector internal = AMP 927 545
25 Pin Connector hood = AMP 926 264
25 Pin Connector unit = VW Part # 155 906 373

1       R/G     Power when starter on   (50)
2       G       O2 Sens                 (Pin 1)
3       R/Y     Fuel Pump Relay Trigger (Pin 85)
4       Y       Knock Sensor            (Pin 1)
5       BK      Knock Sensor            (Pin 2)
6       BR/W    Throttle Switch         (Pin 1)
6       BR/W    Coolant Sensor          (Pin 2)
6       BR/W    Temp Sensor             (Pin 4)
6       BR/W    Hall Generator -        (Pin 1)
7       bare    Knock Sensor Shield     (Pin 3)
8       R/BK    Hall Generator +        (Pin 3)
9       BR/W    Air Temp Sensor         (Pin 1)
10      BR/G    Coolant Temp Sensor     (Pin 1)
11      R/BL    Throttle Switch         (Pin 2)
12      BR/Y    Fuel Injector Ground    (Pin 2)
13      BR      Ground                  (31)
14      BK/Y    Digifant Power Relay    (Pin 87)
14      BR/Y    Fuel Injector Power     (Pin 1)
15      --      No Connection           --
16      G       Test Connection         (Test)
17      BL/BK   Air Flow Sensor         (Pin 3)
18      G/W     Hall Generator 0        (Pin 2)
19      BR/BK   Ground                  (31)
20      W/R     Test Connection         (Test)
21      BL/R    Air Flow Sensor         (Pin 2)
22      Y       Idle Stabilizer         (Pin 1)
23      W       Idle Stabilizer         (Pin 3)
24      --      No Connection           --
25      G       Hall Control Unit       (Pin 6)

Hall Control Unit
Mfg by Telefunken - VW Part Number 191 905 351 B

1       R/BK    Coil Trigger            (Pin 1)
2       BR/W    Ground                  (31)
3       --      No Connection           --
4       BK      Power from coil         (15)
5       --      No Connection           --
6       G       Digifant Control Unit   (Pin 25)

Idiot Lights and gauge connectors

Y/R     Coolant Temp
BL/BK   Oil Pressure 0.3 BAR
Y       Oil Pressure 1.8 BAR

11-OCT-1999 Fast Forward Autobahn Sport Tuning

--   David Marshall -                    - Quesnel, BC, Canada   --
--    78 VW Rabbit, 80 VW Caddy, 84 VW Westie, 85 VW Cabriolet   --
--       87 Audi 5000 Quattro, 88 2.0L VW Syncro Double Cab      --
-- David's Volkswagen Home Page        http://www.volkswagen.org --
-- Fast Forward Autobahn Sport Tuning  http://www.fastforward.ca --
-- david@volkswagen.org (pmail) or vanagon@volkswagen.org (list) --