exige starts and turns off

hello everyone, i was wondering if anyone could help me out here. i recently took my exige to some small mechanic because i was having some little problem and i was far up north with no lotus dealer. he took it apart and made it work again, but now we have hit a problem. when i start the car it runs for 3 seconds and then dies off. its as if the pump is not working or something has not been plugged in that’s stopping from giving fuel to the engine. can someone give me and this fool some suggestions as to what it might be. is there a cut off switch somewhere or could the computer be preventing it form running since the battery died?
thanks for your help