[s-cars] Possible new chip discovery

[Mihnea Cotet]

Gabriel,

These are bone stock factory chips from a 4A0 907 551AA ECU, they are a 
pretty early version of the AAN chips but there's nothing really special 
about them. The Audi software version is D01, which means that they are the 
first version of the code available for the 551AA ECU, D02 not being 
available in the US AFAIK, only D03 which is 357 391 bosch SW number.


In case you want a chip upgrade, make sure the new chips are made on basis 
of this original software version (i.e. not like the MTM 1+ code which is 
based off of an ABY fuel/timing chip), otherwise this could lead to running 
problems (saw that a couple of times with people who've bought chips on 
Ebay for instance).

Hope this helps,

Mihnea




According to www.UrS4.com <<http://www.urs4.com/>http://www.urs4.com/>  my 
stock '92 ECU chips
should be:



TOP 1.267.357.391
BOT 1.267.357.394



I have:



1.267.356.710

1.267.356.711



and they are both socketed with keepers that match the pressure
transducer keeper.  i.e. stock looking with the same logo.  Also the PCB
shows no signs of ever being soldered.  Since my car is a fairly early
build (10/91) I'm guessing these are some early chips and the early
chips were socketed.  The numbering scheme seems to support this.  At
least I already have sockets for future chipping.  :-)