[awhnry]

Are you keeping the battery on a trickle charger? It is quite possible that the battery is low and pulling the whole system down. The fact that it worked on your long road trip to Daytona tells me that the system is working fine when there is plenty of current going thru the system. Modern computer cars wont even run if they dont see adequate current; ours will try. It is also possible that the VR and/or alternator are not up to the task. YMMV