ISV control module: from what model?

[Konstantin Bogach]

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Please, disregard my question about ISV control module.  The part I have has
# 443 907 397 M and not 443 907 393 M.  It is knock sensor control module
from Audi 100 '91.
It was located in the same place, if I remember correctly, and I took it
hoping it is right part.  Never since checked.  Now I can throw it into
garbage.
Sorry for confusion.

Konstantin Bogach.

Konstantin Bogach wrote:

> Hi.
>
> I have spare ISV control module 443 907 393M.  But I don't know what
> model it is from. But I know it is type44.  Anybody recognize the number
> and, especially, "M" at the end?
> Do modules with different letters at the end interchangable?
>
> Thank you.
>
> Konstantin Bogach.