At practice for the Malaysian Grand Prix, Fauzy replaced Heikki Kovalainen in the first free practice session at the 2010 Malaysian Grand Prix, as Jarno Trulli won a coin toss against Kovalainen. In qualifying, at Lotus Racing's home grand prix, the weather provided numerous high-profile casualties during the early period of the session, as both McLaren and Ferrari drivers inexplicably opted to remain in their garages while the rest of the field set banker laps, before the rain arrived. By the time they made their way onto the track, the rain had set in, and it proved impossible to complete a lap good enough to make it into Q2. Kovalainen set a good time in Q1, and was able to beat Trulli into Q2 and outqualified Glock in Q2, who had also made it in. Kovalainen lined up 15th. He made a good start, although was overtaken by the McLarens and Ferrari's. On lap 20, Kovalainen pitted because he was suffering hydraulic issues. He resumed nine laps adrift of the leader and circulated six laps behind his nearest rival. He ultimately did not complete enough laps to be classified as a finisher, ultimately taking the chequered flag ten laps down. His teammate Trulli collided with Glock on lap 3. Later in the race, he suffered hydraulic issues, but was able to bring it home in 17th, 5 laps down and overtaken by both Hispania's.