[s-cars] Differences in ECU's?

[Mark Strangways]

MTM has encryption boards.
If you don't have a daughter board then your hacking...

Not that I would know anything about that.

Mark (at the beach) S
----- Original Message ----- 
From: "chris chambers" <fastscirocco_2000 at yahoo.com>
To: <mlbess at optonline.net>; "Scar" <s-car-list at audifans.com>
Sent: Thursday, March 16, 2006 2:53 PM
Subject: Re: [s-cars] Differences in ECU's?


> Michael,
> 
> Who installed the MTM chips? Is one of them on top of
> another circuit board and then on top of the main board of the ECU?
> I'm gonna guess you have a decryption circuit underneath one
> of your chips.
> 
> It is quite common for some chip manufacturers to install a "daughter"
> to decrypt the code on their chip, and then encrypt the code on their
> chips. The chips are then mounted on this extra circuit some call a
> "daughter board"
> 
> Look at the pic at this link, it is of just such a chip.
> http://img.photobucket.com/albums/v48/chrisanjenn/Audi%20S4/7ac02504.jpg
> 
> If you have this you need to remove the "daughter board" and solder
> in a socket into the ECU where the "daughter board" was installed.
> 
> 
> HTH
> Chris
> 
> 
> 
> 
> --- Michael Bess <mlbess at optonline.net> wrote:
> 
>> Chris:
>> 
>> We checked out the obvious already.  Bob Myers burned the chips. 
>> Before he
>> shipped the last pair he tested them in his ECU on another S6...all
>> OK.
>> Notch in the chips facing down (when the pressure xducer is at 9
>> o'clock
>> with the ECU open) just like in Bob's posted photos & directions. 
>> Chips are
>> marked Boost or Timing so that's not the problem.  I'm stumped; my
>> mechanic
>> is frustrated.  Or is it I'm frustrated and he's stumped??
>> 
>> METALS MARKETING & TECHNOLOGY
>> 
>> Michael Bess
>> President
>> 
>> 
>> -----Original Message-----
>> From: chris chambers [mailto:fastscirocco_2000 at yahoo.com] 
>> Sent: Thursday, March 16, 2006 2:00 PM
>> To: mlbess at optonline.net; s-car-list at audifans.com
>> Subject: Re: [s-cars] Differences in ECU's?
>> 
>> As far as I know all of our S-cars have the same ECU
>> 
>> You are installing the chips in the wrong sockets
>> You are installing the chips backwards in the right sockets
>> Whoever is burning the chips isn't doing it right
>> Whoever is burning the chips got a bad batch of chips
>> 
>> 
>> That is all for now
>> 
>> PDHBOWWCID?
>> 
>> Chris
>> 
>> 
>> --- Michael Bess <mlbess at optonline.net> wrote:
>> 
>> > I am experiencing a problem with the MRC RS2 ECU chips.  I
>> currently
>> > have
>> > the MTM 1+ installed.  We swap in the MRC chips and the car simply
>> > will not
>> > start.  I thought perhaps there was a problem with the chips and so
>> > got
>> > another set to try.  Still no start; put the MTM chips back in and
>> > all is
>> > fine.  The P/N on my ECU is 4A0907551AA.
>> > 
>> >  
>> > 
>> > Any thoughts?
>> > 
>> >  
>> > 
>> > Mike Bess
>> > 
>> > '95 S6
>> > 
>> >  
>> > 
>> > _______________________________________________
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>> > S-CAR-List at audifans.com
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>> > 
>> 
>> 
>> Make April 15th just another day http://www.fairtax.org
>> 
>> 
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> 
> 
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> 
> 
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