Why would they be reluctant to release L-Jetronic ECU logic? I can only guess, but I suspect in both cases it's because it's not in thier best financial interest.
As it stands they make quite a bit selling OEM replacement parts and all they have to do it match up a part number. If they gave out detailed specs it would be a lot easier and cheaper for someone to use an NON Bosch injector as an OEM replacemetn.
Most if not all Bosch injectors that fit our cars have been out of production for at least 10 years. If Bosch puts up all the specs for these injectors that might help you find what you need in a salvage yard or on ebay, but it won't help Bosch financially so why would they do it?
Plus, I can assure you the market for these older injectors is very very limited. Definatly not worth the trouble for a big company, it's barely worth the trouble for me.
Greg Gordon
www.hiperformancestore.com