Essentially all of the California ECU's interchange with each other.  Here's
a post in a discussion with Karl Von Salzen and my results of research:
**************
071-906-021  * Bosch 0280 000 192
071-906 021 B  * Bosch 0280 000 194 or 195
071-906-021 E  * Bosch 0280 000 194 or 195

I looked in a very seldom used Bosch Fiche and found this:

0280 000 194, 195
Vanagon 2.0 California 09.80 - 12.82
VW Numbers 071 906 021 B or E

Seems Bosch (without posting in equivalent VW Numbers in VW ETKA or the VW
Parts Supersession Fiche) superseded the E back to the B.  When I type in
071906021E in ETKA, it comes up with "Invalid Part Number".  No
supersession, nada, zip........

Now to make it even crazier, here's Bosch's supersession trail:

0280 000 192 (1980 Cal) USE 0280 000 194
0280 000 193 (1980 Cal) USE 0280 000 195
0280 000 195 (81-83.5 Cal) USE 0280 000 194(!!)

In otherwords, the 071 906 021 and 071 906 021 E all supersede into ONE
replacement ECU: the 071 906 021 B(!)
*********
And there's yer answer....
--
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
72 411 Station Wagon "Pug"
oldvolkshome@gmail.com
http://www.oldvolkshome.com
jim@airheadparts.com
***********************************
On Wed, Sep 24, 2008 at 4:54 PM, B.J.R. <beer_eighty@yahoo.com> wrote:

> My ECU in my 82 CA westy needs replacing.
> The bosch number on the current one is 071 906 021 B
> What others are compatable with my Westy?
> Anyone have a link?