CHICAGO – The Pistons were losing their cool. Moments after Rasheed Wallace was called for a technical foul, Tayshaun Prince held his arms out, upset about a non-call.

Detroit had no reason to feel good on Sunday, not after the Chicago Bulls won game 4 of the Eastern Conference semifinals 102-87 on Sunday, denying the Pistons a sweep.

“Now we got a series,” Detroit coach Flip Saunders said. “Both teams have gotten beat, and so now you got a series. They’re not going to give us anything.”

The Pistons will try to wrap up this series at home on Tuesday.

Detroit rushed shots, took 25 3-pointers. A defense that stifled the Bulls in the first three games suddenly had trouble stopping them.

The Bulls gave the Pistons little and took plenty on Sunday.

Luol Deng scored 25 points, and Kirk Hinrich and Ben Gordon added 19 apiece.

“I don’t care who it is, we are better than being swept in four games,” Ben Wallace said. “We just have to come out and fight.”

Unlike Game 3, when the Bulls saw a 19-point lead dissolve into a seven-point loss, Chicago withstood a late push by Detroit. The Bulls outscored the Pistons 27-13 in the third quarter to turn a seven-point halftime lead into a 77-56 advantage going into the fourth.

They didn’t flinch when Chauncey Billups hit two free throws with 3:55 left to cut it to 87-80, or when he answered Gordon’s 3-pointer with one of his own. That made it 90-83 with 2:46 remaining, but the Bulls hung on against a Pistons team that had won 12 of 13 closeout games.

“I think the feeling was we knew the run was coming,” Hinrich said. “You feel like the shift in momentum. We just needed to take a deep breath and just keep what we were doing to get there _ moving the ball, keeping an up-tempo game and getting stops.”

The Bulls still have a long way to go to join the 1942 Toronto Maple Leafs, 1975 New York Islanders and 2004 Boston Red Sox as the only major pro teams to win a best-of-seven series after falling behind 3-0. Now, the series shifts back to The Palace of Auburn Hills, where Detroit blew out Chicago in Games 1 and 2 after sweeping Orlando in the first round.

Deng was 10-of-15 after shooting 38 percent in the first three games and grabbed 13 rebounds.

Although he committed five turnovers, Hinrich added 10 assists and took a charge on Billups after Billups hit those free throws to pull within seven. Wallace delivered a vintage performance against his former team, grabbing 17 rebounds, and the Bulls held a 51-33 edge on the glass.

Wallace also scored 11 points and blocked two shots, while Tyrus Thomas provided a boost in the fourth quarter, scoring eight of his 10 points.

Billups led Detroit with 23 points. Tayshaun Prince added 18, but Richard Hamilton, Rasheed Wallace and Chris Webber all had rough afternoons. Hamilton (11 points) was just 4-for-12. Wallace was just 4-for-16 and scored 14. Webber did not score.

Billups pinned the loss on himself, saying, “(We) cut it all the way to seven. We grind it all the way, all the way, we had the play called and I saw the baseline open when I was about to turn. And I went to attack, we were in the bonus and I was ready to get to the free throw line. We were getting something every time, so I went to attack it and he was there for the charge.”

Even though he said the call was a good one, Billups was critical of the officiating, saying: “It takes a little out of you. You’re going hard doing the same thing they’re doing and not getting the calls, but that’s just how it is, man.”

The Bulls led 50-43 at the half and pulled away in the third quarter, when Detroit was just 5-of-22 and got outrebounded 21-7.

“We’re not concerned at all,” Rasheed Wallace said. “Our hats off to them, they won the game, you got to respect them for that, they played hard today, but we will go and play hard on Tuesday.”