Had a similar issue with my CR-V when I acquired it.....would have to constantly rest my hand on the wheel to bias it over to one side otherwise it would drag over into another lane.
This was caused by the rear wheels being out of alignment (toe in/out) which is adjustable on the CR-V but not entirely sure if on the FR-V
Once the rear adjustment was made, problem solved.
Any adjustments on alignment should be made on the rear first if out of sync, most of the time they compensate by adjusting the fronts which doesn't cure it.
Also, check your tyres carefully (sizes, pressures, make (e.g. Chinese) and go with that before spending big money on it