[s-cars] ECU question

[jimk at spotgraphicsinc.com]

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Thanks for the info,
As another data point, Carlsen Audi supplied different part numbers yet.

1993   8A0-906-266 J
1995   8A0-906-266 K

Scott Thompson wrote:

> I swapped a 93 IA 2.5 bar chipped ECU into my 95 S6 for testing, and
> it ran fine.  Also swapped the S6 ECU into the 93 S4.  It also ran,
> but the total test time was like 10 mins/car.  I think there were code
> changes in the boost mappings through the years, but don't know about
> the rest of the ECU.
>
> -Scott
>
>  jimk at spotgraphicsinc.com wrote:
>
>      Is a stock ECU from a 1993 S4 interchangable with a stock
>      one from a
>      1995 S6? How about modified? I thought they were and can't
>      see why
>      not, but haven't tried it yet.
>      The reason I ask is that there are 2 different part numbers
>      and the
>      dealer is quoting different prices with the S6 one being
>      cheaper. I am
>      very confused.
>      93 S4 ECU 8A0 906 266 B
>      95 S6 ECU 4A0 997-551-X
>      Jim
>
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