Former basketball star Pete Maravich died last week due to an enlarged and weakened heart with a continuous lack of oxygen into the heart muscle, the Los Angeles County Coroner's Office reported.

Compounding that, said coroner's spokesman Bob Dambacher, Maravich had no left coronary artery.

Maravich, the leading scorer in NCAA history and a member of the NBA Hall of Fame, collapsed during a pickup game in nearby Pasadena last Tuesday morning and died a short time later at St. Luke Medical Center. He was 40. . . .

Chris Mullin admits his "life had become unmanageable because of alcohol."

"I was late all the time," Mullin, the Golden State Warriors' third-year guard, told the New York Daily News.

Mullin said he made numerous excuses for his lateness, adding, "That . . . wasn't me."

Mullin has been in alcohol rehabilitation at the LifeStarts chemical dependency program in Inglewood, Calif., since Dec. 13. He was released yesterday.

"This was the hardest thing I ever had to do in my life, but it was the best thing I ever did in my life," Mullin said. "Better than anything I ever did playing ball."

Mullin said that when Don Nelson became the Warriors' general manager last summer, the two made a deal that Mullin "wouldn't drink for six months."

"I said, 'sure,' and we shook hands on it," the former St. John's all-America said. "Now, shaking hands with me is like giving my word, but I really wasn't taking him seriously.

"It was the summertime, man. I thought there was some rule you had to drink in the summertime. I went back to drinking." . . .

The Washington Bullets signed guard Steve Colter to a second 10-day contract. He is averaging 4.0 points a game. Also, the team confirmed that Sunday's home game against the Sacramento Kings will start at 3 p.m. Officials had considered changing the starting time so it would not conflict with the Redskins' 12:30 p.m. NFC championship game. However, the game had been switched from 1 to 3 several months ago and the Kings have travel plans that return them to the West Coast later Sunday.