from previous experiance with v5 EJ207- that had the same 8 second club status;
tried fuel pump issue, 12v direct, no dice. ran a evo 7 fuel tank externally and externally powered, no dice. so not a fuel or fuel filter issue.
swapped crank/cam angle sensors. no dice
tried power FC, and normal ecu. no dice
coil packs, no dice.
in our instance it was the maf. swap mafs, and it fired right up perfect.
perhaps its ecu in your chance. ask silvialost, his car had funkalicious ecu business.