In an interview in a Norwegian newspaper, Lundekvam said the players manipulated incidents such as the first throw-in for betting purposes. The world governing body announced on Wednesday they will investigate the claims.
Lundekvam told The Sun: "Of course I will talk to FIFA - I have no problem with that. Unfortunately I've been honest about it, so I need to."
He added: "I will obviously have some names and matches. But, to be honest, I wouldn't say any more than I have said already if I don't have to. I would not want to name anyone else. That's not for me to do but I will stand up for what I have said."
Lundekvam reiterated his claims after a number of his former team-mates denied knowing anything about it.
"I haven't made anything up," he said. "Why would I? I've got nothing to gain from making this up.
"I can't believe what has happened in the last few days. I'm sorry that my honesty has caused such a row."
He also played down the seriousness of the alleged spot-fixing, saying it was done more for fun than money.
He said: "It was never about the money. If we had wanted to, we would have put a lot more money on. Could we do it? That was the fun bit of it for us."
He added: "This was a boys' thing. A dressing-room thing. Innocent fun involving small money."