"Your list says the -949 ECU should have the 1 267 357 567 Eprom. Today I opened my -949 again and found a 2 287 357 567 Eprom in it"
So this must be some other variations of your -949 ECU but not listed within the last column ie Eprom number. Unfortunately the list is not exhaustive. I have two -935 ECU with same Bosch and Volvo number but with different Eproms inside. The thing is one was made in Germany (2 287 357 397 Eprom) while the other in Spain (2 287 357 568 Eprom). Different setting resistors too - Germany uses 3 while Spain uses 2. Both works well but the one that came with the car (Spain) performs a little bit better (maybe because I've replaced the caps).
My guess these would be for different markets, fuel octane, model variations (sedan/wagon), accessories (AC/no AC) and emissions requirement.
Regards,
Amarin
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