Digifant ll is similar to Vanagon Digifant with these differences: A knock sensor , idle stabilization  controlled by the ECU( no idle stabilizer relay), and Hall control unit.
Vanagon's Hall control is in the ECU-they get hot. Golf-Jetta Digifant ll has the Hall control on a heat sink , separate from the ECU.

You can't get a Digitool for it last time I checked.  
You can get a chip.  
A good book that adresses this engine is the "Watercooled Volkswagen Performance Handbook " By Greg Raven
This is a book- costs about $25.00.Classic Motorbooks

Robert K

1982 Westfalia 2.0 95 Golf powered
1987 Wolfsburg
1982 Yamaha Vision

----- Original Message -----
Wrom: NSKV
Sent: Friday, March 01, 2002 2:07 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Digifant II... ?

Hi folks,

Just picked a German made '89 Jetta with the "PF" high compression
1.8L.  Bentley says it has the Digifant II fuel injection system...

How similar is the Vanagon system Digifant F/I to what's in this
Jetta..?

Will a Digitool work with this system?

Can I use one the Aussie power chips?

What magazine would be most helpful in upgrading this new edition to my
fleet (I've been out of the Sport compact scene for so long, I don't
know what is out there anymore...)

Especially looking for input from you Tuners out there....

If anything ever happens to the body or tranny of this car, the engine
will most assuredly be transplanted into one of my '83.5 Westies...

            TIA

                    JonR

        NH area LiMBO repGet more from the Web.  FREE MSN Explorer download : http://explorer.msn.com