Lotus have yet to resolve the steering issues that have dogged Kimi Raikkonen since the start of his comeback season.
Raikkonen, who returned to F1 with Lotus after two years away from the sport, has showed impressive pace this season. However, his efforts have been hampered by steering issues.
Attempts to rectify the problem at the previous race in Monaco did not go according to plan as, although Raikkonen missed the entire first practice while his team worked on his steering, the Finn still only managed ninth place.
However, Lotus technical director James Allison is hoping a solution will be found at this weekend's Canadian Grand Prix.
"Monaco demands a specific steering setup which entails different suspension components to enable sufficient steering lock to be employed," Allison said.
"In addition, we tried a higher geared steering set-up for Kimi. You can't test this in advance so the first practice session was used to trial this new setup, but it was evident very quickly that it was not suitable.
"The change takes sufficient time that we had to start immediately in first practice, but he knows the track well. We could also see Romain's pace despite a lack of F1 experience in Monaco.
"Kimi struggled with both the car and the tyres throughout the weekend and I think it would have been a troublesome event for him with or without having run in every session.
"Our base steering set-up has got Kimi on to the podium, but we're still working on refining it to get it exactly to his liking."