What Accord electrical problem causes car to die without reason

2000 Honda Accord LX

After seeing all the other Stalling problems, we installed a new Ignition switch and pig tail, then ckecked and replace batterey with new one, and finially replaced the main relay. Thought we had only the 3 lights in dash problem and stalling was fixed until it died running in the driveway. The Idle drops to 6-700 it seems and the alternator works harder when I turn on all the lights and Heat.fan. to be expected. Charges 13.8-14V Any Help out there?