That's because VW had two manufacturers - Bosch and Triumph/Adler.  Both
also made the Digifant ECU as well.
--
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
73 K Ghia Coupe "Denise"
72 411 Station Wagon "Pug"
oldvolkshome@gmail.com
http://www.oldvolkshome.com
***********************************
On 2/27/07, Nathaniel Poole <myth.wright@gmail.com> wrote:
>
> Thanks again. It's strange that the two ECUs are for the same engine
> and yet look so different, Never would've guessed.
>
> Nathaniel
>
> On 2/27/07, Old Volks Home <oldvolkshome@gmail.com> wrote:
> > 025 906 021 is for Digijet 83.5-85 Vanagons.  The one marked "Digijet"
> is
> > the same thing as well.
> >
> > Here's an excerpt of a post I made to the Vanagon List 10/9/2006 (Damn I
> luv
> > Google's mail search function!!):
> >
> >
> > Quick data notes:
> >
> > 025 906 021 = Bosch 0280 000 501 or 502 - USA or CDN 1.9 83.5-85
> >   Note:  Bosch Rebuilt CU114X (No Longer Available)
> > 025 906 021A = Bosch 0280 000 509 or 510 - Europe 1.9 83.5-85
> > 025 906 021B = Bosch 0280 000 512 or 513 - Europe 1.9 83.5-85
> > 025 906 021E = Bosch 0280 000 522 or 523 - Europe 2.1 w/Digijet 86-91
> >   Note:  I believe this is the ECU Boston Bob provides, but I really
> don't
> > know.
> >
> > Sources:  Bosch Data Fiches, "OE to Bosch" and "Bosch to Where Used".--
> > Jim Thompson
> > 84 GL 1.9 "Gloria"
> > 84 Westfalia 2.1 "Ole Putt" (w/2.1 Digijet ECU)
> > 73 K Ghia Coupe "Denise"
> > 72 411 Station Wagon "Pug"
> > oldvolkshome@gmail.com
> >  http://www.oldvolkshome.com
> > ***********************************
> >
> > On 2/27/07, Nathaniel Poole <myth.wright@gmail.com > wrote:
> > > Hey all, I've got two ECUs here and I'm trying to figure which one is
> > > is which. I have one marked Digijet and another with bosch # 025 906
> > > 021. I Believe one is for an 84 1.9 and the other is for a 2.1. Can
> > > anyone help me with this?
> > >
> > > Thanks
> > >
> > > Nathaniel