Prosecutors said Wednesday that changes are needed in a presentencing report for the platinum-selling rapper and actor.
He's now due back March 9 to cement a sentencing date. Ja Rule pleaded guilty in December to attempted weapon possession.
The 34-year-old performer's plea deal calls for a two-year prison term.
Police said they found a loaded gun in a rear door of his luxury sportscar when it was stopped for speeding after a July 2007 concert.
Ja Rule was nominated for a 2002 best rap album Grammy Award for "Pain is Love." His movie credits include 2001's "The Fast and the Furious" and 2003's "Scary Movie 3."
