I did this back in the day when we were getting new 2.1l AFMs for cheap.
Seemed to work well.  The only problem was the 2.1l air box was too big to
fit in the location of the 1.9l Air box.  So then I tried installing the
2.1l AFM onto the 1.9l Air box which works with some modification.  The air
intake boot also has to be retrofitted from the 2.1l so you can see how
quickly the cost of this mod can rise if you were dealing with new parts.
I did it as an experiment because at the time, we were getting brand new
2.1l AFMs from Europe for very cheap.  As soon as I finished this
experiment and it was successful, the company that was supplying the new
2.ll AFMs ran out and the cost of them went up to about the same cost of
new 1.9l AFMs which made the entire project moot.  Now, with both AFMs
being discontinued new and harder and harder to get as rebuilt parts, maybe
my research wasn't in vain...

Ken

On Tue, Jun 20, 2017 at 11:52 PM, Neil N <musomuso@gmail.com> wrote:

> Hi all.
>
> Found this in archives:
>
> http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind1007D&L=vanagon&P=R22451
>
> Has anyone tested to see if the 2.1 AFM will properly (provide correct
> inputs to ECU) on a 1.9 Digijet engine?
>
> Thanks
>
> Neil.
>
> --
> Neil n
>
> Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
>
> 1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
>
> 1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
>
> Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
>

--
Thanks,
Ken Wilford
John 3:16
www.vanagain.com