Trying to learn about my Bosch Motronic

[bforster at att.net]

I have a '95 BMW that uses a Bosch 261-200-413 Motronic 
unit.  I've acquired a spare ECU to play with.  My 
intent is to use my laptop, along with some I/O boards, 
to simulate the various sensors that the ECU requires.  
I want to understand what the ECU is doing so I can make 
changes if/when I mod the engine (i.e. supercharge).  I 
have not found much info on this ECU.  I've found a few 
web sites that contain a fair amount of info for older 
Bosch ECUs.  The thing holding up the project is finding 
a connector that will allow me to connect to the ECU.  
It's an 88 pin rectangular connector that appears to be 
Bosch specific.  I know that I can buy a used wiring 
harness but they are $300 - $400.  Can anyone recommend 
a way of obtaining a connector.  Also, if anyone can 
provide a web site that is a wealth of info for Bosch 
units of my era, I'd appreciate that too.

Bill Forster
bforster at att.net
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