Pahlsson finally solved Ottawa goaltender Ray Emery at 14:16 of the third after a giveaway by Dany Heatley in the neutral zone. Pahlsson collected the puck, streaked into the Ottawa zone and banked a shot in off the left post.
The Ducks easily had the bulk of the game's good scoring chances, especially as the line of Pahlsson, Travis Moen and Rob Niedermayer neutralized Ottawa's lethal top scoring line. But Emery kept Ottawa in it, despite the fact the Senators were outshot 31-16.
Game 3 is Saturday in Ottawa.