The game was abandoned in the 60th minute by Panamanian referee Roberto Moreno when El Salvador was reduced to six players. Moreno had red carded Alexander Escobar and Eliseo Quintanilla in the first half, and, after El Salvador had already made three substitutions, Deris Umanzor, Rodolfo Zelaya and goalkeeper Juan José Gómez were injured and had to leave the game.
Panama defeated host Honduras 1-0 in the other semifinal, and will play Los Ticos in Sunday's title game in a rematch of the 2007 championship which Costa Rica won on penalties.
All four teams already had earned themselves berths in the CONCACAF Gold Cup along with Nicaragua, which beat Guatemala 2-0 on Thursday to claim the fifth and last place in the 12-team field.
Costa Rica beat Panama 3-0 in the Group B opener, which Furtado scoring twice.
Furtado's goal in the 18th minute gave him the tournament lead, taking over the scoring chores for a side missing many of its first-team regulars.
Ricardo Phillips accounted for Panama's goal on a counterattack in the 39th minute, only the second goal for the team in three games. Honduras dominated much of the game, generating 15 corners to Panama's two.
