Well they do have different part number, but seeing how the Vigor was stopped in production in '94, it could very well be the same part. The I-5 engines were actually taken from Volvo (or Audi I forget which)
I had a '97 Acura TL 2.5 (which got totaled being hit in the rear) and I love the car so much I bought another, only a '96. The '96 had the same crank pulley issue. The seam, where the double pulley was forged, split and it had I had to replace it. That was a pain. Pretty much have to take the radiator, fans and front grille off to pull it out. Also FYI you'll need a special tool to lock it down so you can pull the pulley off.