The 42-year-old van Dyk struggled against the Mystics last week, while Wells has shown positive signs in her limited playing time this season.
Wells may be the future but her shooting was mixed against the Fever as she finished the game with 17 goals from 26 attempts. Goal attack Jodi Brown (31/37) took on a bigger shooting role.
The Pulse began well against the travel-weary Fever, who played against the Tactix in Blenheim last week, and took a 12-10 lead to the break after the first quarter.
But the 7-1 Fever showed why they're the side with the best record in the competition this year as they ground their way back in to the game.
The Western Australians took their time to adjust to the Pulse's slow style of play but once they got in to the game, they never looked troubled.
West Coast Fever 51 (Caitlin Bassett 41/45, Natalie Medhurst 10/13) Central Pulse 48 (Jodi Brown 31/37 Ameliaranne Wells 17/26) 1Q: 10-12, halftime: 23-23, 3Q: 36-33