i dirt track race a 2000 sunfire gt when i put it away for the winter everything worked fine. I went racing for the first time last saturday and while sitting and waiting for hotlaps the instrument cluster went dead and when i got on the track car died a lap in ofcourse i didnt have a spare so just charged the battery and made it through the night. Got altenator checked and it was bad install new one and there is the same problem. I unplugged the wires and just used a testlight to see if there is any power there and there is nothing even with the car running with a battery charger hooked up i read the papers that came with the new one and it says there could be a trouble code in the ecm (is this true) and ofcourse my scantool took a crap and i havent bought a new one. ANY HELP PLEASE