Chris Wood is expected to start in Thursday's second leg in Lima - and that could provide a vital physiological edge for the All Whites.
Wood was a shock withdrawal before the match, due to his still suspect hamstring, and the sight of him marooned on the bench as the match kicked off was a deflating one for the majority of the crowd.
But the All Whites coped without him, and then his introduction in the 73rd minute changed the dimension of today's match.
The crowd roared - one of the most deafening cheers of the evening - and his sheer presence gave New Zealand hope, while the Peru defence, which had looked so assured for most of the match, suddenly seemed to get the wobbles.
The All Whites had some late chances, to Kosta Barbarouses and Ryan Thomas, with Thomas' probably the best opportunity of the match to break the 0-0 deadlock.