I have an 01 A6 2.7L it just cranks and cranks i replaced the body control module it started for a few days the did the same thing did sime research and replaced the fuel pump fired right up been driving for a few weeks now its acting as if its not getting fuel just cranks ive heard it could be the anti theft since the owner before me had an after market alarm ifnso is there away to bypass that any help or ideas i would love thanks