olli-pekka laakkonenstudent from finland owner of bmw e46 328ciArticles by olli-pekka laakkonen 1 articles BMW E46 3-series Forum 29/04/17i tried to put my ms42 to boot mode and jm garage only says echo byte error and then i give up and put everything back and the car wont start it will crank but no start so any ideas?