 He moved to the United States and participated in Indy Lights from 1991 to 1993 capturing 4 wins and finishing runner up in both the 1992 and 1993 standings, behind Robbie Buhl and Bryan Herta respectively.However, he had trouble finding a good team in CART, making 4 starts (and 1 DNF) for 3 different teams in the 1994 season with a best finish of 12th in his CART debut at the Long Beach Grand Prix.1995 wasn't much better as Fréon finished 15th in the Long Beach season opener, then failed to qualify for the Indianapolis 500 in a 3 year old Lola chassis and returned 5 months later only to fail to make the show at Laguna Seca Raceway.