"We stuck to what's worked for us and it led to some goals and some good defense," Hinostroza said. "We've been playing really good hockey right now. We like where this is going. We just want to keep it going."
WATCH: [All Coyotes vs. Senators highlights]
Richard Panik had two assists, and Derek Stepan scored for the Coyotes (23-22-4), who won for the sixth time in eight games (6-1-1). Darcy Kuemper made 25 saves for his sixth win in seven starts.
"The Stepan line was excellent tonight," Arizona coach Rick Tocchet said. "They had a lot of possession time, changed momentum when they were on the ice, and they did a great job for us tonight.
"[Hinostroza] is really hard on the forecheck, [Panik] is being real sticky in the corners, and [Stepan] is a smart guy, he kind of reacts off those guys. … Just the chemistry right now, they're feeling it."
Ryan Dzingel had a goal and an assist, Bobby Ryan scored, and Craig Anderson made 30 saves for the Senators (19-26-5), who have lost two in a row.
"The guys fought," Ottawa coach Guy Boucher said. "You saw that we had two high-end scoring chances at the end that could've definitely tied the game. We had some high-end scoring chances, whether it's in the first or second. We could've scored more goals, absolutely."
Coyotes defenseman Oliver Ekman-Larsson left the game at 4:24 of the second period with a lower-body injury.