WWW- Former New Jersey Gov. Jim McGreevey spilled his guts to Oprah yesterday about the years he spent living as a closeted “gay American,” but Oprah’s audience was unimpressed.

Oprah swore the audience to secrecy at the taping of her show, which airs Sept. 19 – the same day that McGreevey’s memoir, “The Confession,” hits store shelves.

If the reaction of her fans who watched the taping are any indication, McGreevey’s musings – for which he reportedly got a $500,000 advance – could be a tough sell.

“Not impressed with him or his story,” one woman who declined to give her name said after she left Harpo Studios, the Chicago home of “The Oprah Winfrey Show.”

Another woman was put off by McGreevey – and the subject matter. “It’s not my type of show,” she said.

McGreevey shocked the nation, not to mention the Garden State, when he outed himself as “a gay American” in 2004 and announced that he was resigning.

He and his second wife, Dina Matos, are in the midst of a divorce and McGreevey is now living in New Jersey with Australian rainmaker Mark O’Donnell.

McGreevey was forced out of the closet when Golan Cipel – a young Israeli the governor appointed as his homeland security chief even though he wasn’t a U.S. citizen – charged McGreevey was pressuring him for sex.

Excerpts from McGreevey’s memoir leaked out in May and in them the ex-governor recounted his struggle to come to terms with his homosexuality.

McGreevey, who fathered two daughters by each of his two ex-wives, wrote that he had secret gay sex in bookstores and rest stops because he feared his homosexuality would ruin his chances of success as a politician.