Electronic Control Unit (JETRONIC) s Part # 039-906-021C
----------------------
I haven't had any go bad but this is the number for a 1981 Auto, Air
cooled with Auto Tranny.
Leasewise that was what was on it.

Stan

On Wed, 18 Dec 2002 10:45:18 -0500 Vanagon man <vgonman@MSN.COM> writes:
> The injection systems between the air-cooled manual and automatic
> transmissions (federal model) are identical except the A/t does not
> have a
> deceleration valve........
>
> The A/T van that I currently am restoring had a dead
> ECU...............no
> pulse at the injectors, but at the cold start
> valve...............so, we
> swapped ECU's with a good manual transmission one, and it seems low
> on
> power...........
>
> I know in the Bay window busses they had different ECU's....I figure
> this
> probably had something to do with duration of the injector pulse,
> or
> something..........
>
> Any advice is appreciated.
>
>
> Adam P
> 81  Westy "The Brick "
> 70 Single Cab "Whitey"
> 74 Beetle "Ol Yeller"
> 73 Transporter (STILL at paint shop)
> 1988 Vanagon Wolfsburg
> 1976 Transporter (New CA bus)
> Used Vanagon Parts for sale (mostly aircooled)
>
>