I have recently purchased a 1997 z28 with the LT-1 engine. It started and ran just fine but recently my son ran the battery down while working on it. We recharged the battery and when we tried to start it it cranked once and then everything went dead. Thought it was a direct to ground short that drained the battery but after disconnecting the battery and checking it (still had a charge of 12.7 volts) we reinstalled it and all electronics worked again. The electronics will work until the key is turned to the start position and then everything goes dead. Disconnecting the battery for a few minutes will reset something and everything will work until the key is turned to start. We went through the reprogramming process for the chip in the key and that didn't help. Has anyone else had this issue? My next move is to start replacing parts beginning with the ignition lock assembly but I don't want to start throwing money at the problem hoping to get lucky. Please help if you can.