I first got the car I had problems, no start at all. I than reprogramed the computer with the key in run mode for 30 minutes and no problems. Until I changed the battery, I know have no crank and no fuel pressure too. Is it the bcm. Itried to reprogram it, but It went from no crank, to now no crank and no fuel. Is there a fuel pump fuse hidden? Is there away to eliminate the passkey system?

I DO NOT KNOW THE SOLUTION TO YOUR DELIMA HOWEVER THESE CARS ARE NOT MEANT TO ELIMINATE FUNCTIONS. IF YOU DONT FIND A SOLUTION TO YOUR PROBLEM ON THE FORUM YOU MAY TRY YOUR LIBRARY, THEY HAVE ACCESS TO AN AUTOMOTIVE DIAGNOSTIC SYSTEM. IF NOT GO TO ALLDATA.C0M AND FOR A FEE YOU CAN DO THE SAME JOB AS YOUR MECHANIC. I HOPE THIS HELPS YOU. DO YOU HAVE AN ON BOARD DIAGNOSTIC TESTER. ??

Sounds to me like there may be a short in the battery harness or one of your fusible links has gone bad. Just food for thought.

-ImpalaMan