car shut off on the track? help
 

guys have a an 02wrx with a fully built 2.5. just started tracking my car.
here is the issue. my car is fine for a good 2 laps ( button willow ) when i start doing hot laps i can never finish 1 or 2 laps because my car dies on me. i have to unplug my brown harness and reconnect it and it starts right up again. it drives fine and only happens to me at the track. their are no fuel issues i have plenty of pressure. this has happened the last few track days. could it be a bad wire? i have not messed with anything and it only does it while im on the track.no check engine light at all before it shuts off. any information would be greatly appreciated.