The Frenchmen were the fastest Friday on the streets of Long Beach.
Simon Pagenaud and Sebastien Bourdais were first and second in the final practice before qualifying for the Toyota Grand Prix of Long Beach.
Pagenaud was quickest on the 1.968-mile, 11-turn circuit with a lap of 1 minute, 9.1488 seconds. Three-time winner Bourdais was 0.0120 seconds back.
Jack Hawksworth, a rookie, was third, followed by defending race winner Takuma Sato. Will Power, winner of the season-opening race in St. Petersburg, Fla., rounded out the top five.
Honda had the edge with six cars in the top 10.
Juan Pablo Montoya had his strongest showing to date with the ninth-fastest speed in the second practice. The Colombian is back in open wheel after seven seasons in NASCAR.