Dakota Joshua had a goal and an assist, Quinn Hughes had three assists, and Boeser had two assists for the Canucks (25-11-3), who are 9-2-2 their past 13 games. Thatcher Demko made 21 saves in his 100th NHL victory.
Vancouver led 5-2 early in the third period before New Jersey cut it to 5-4 with 7:06 remaining.
“I liked a lot of our game today,” Miller said. “I just think that's a classic case of sitting back a little too much with the lead and they have a ton of talent over there, so they're going to make plays. We’ve got to find a way to find a happy medium of staying aggressive but being in our structure to where we don't give them so much time and space.”
Colin Miller scored twice, and Erik Haula had a goal and an assist for the Devils (21-15-2), who had won two straight. Brendan Smith had two assists, and Nico Daws made 36 saves.
New Jersey played without top-line center Jack Hughes after he sustained an upper-body injury late in a 4-2 win against the Chicago Blackhawks on Friday.
“When you're a little short-handed, you got to find different ways,” Devils coach Lindy Ruff said. “But I thought that second half, they gave it everything they had to try to get back in the hockey game and that's all you can ask really.”
Vancouver outshot New Jersey 17-5 in the first period, and Pettersson gave the Canucks a 1-0 lead with a goal 41 seconds into the second period, deflecting a Filip Hronek point shot over Daws’ blocker.
“Their energy was incredible to start the game,” Ruff said. “We didn't win enough battles."
J.T. Miller made it 2-0 at 3:33 on a rebound after extended pressure in the Devils end, including a Hronek slap shot that knocked defenseman Jonas Siegenthaler out of the play, and the game, with a broken left foot.
“Jonas is not OK,” Ruff said. “Jonas broke his foot with that shot, so he'll be out.”
Miller scored again to extend it to 3-0 at 4:37, converting a cross-ice pass from Pettersson on a rush with a one-timer over Daws’ glove from the right face-off dot.
“Just us playing hockey,” Pettersson said when asked about rediscovered chemistry with Boeser and Miller. “Obviously, we played a ton back in the day, so just trying to work hard, make plays and be reliable for each other.”