Ok, check everything step by step.
In the
Profiler's Specific Game Settings.
Set the overall effect strength to between 101-105%.
Set all others to 0%.
Tick use special steering wheel settings.
In Steering Wheel Settings, untick the box for Report Combined Pedals (we dont want combined pedals).
Set the degrees of rotation (i.e. 900)
Game settings, tick the box to Allow Game to Adjust Settings.
(Most info taken from the LFS Manual:
http://en.lfsmanual.net/wiki/Wheels
In the
Global Device Settings,
In Steering Wheel Settings, untick the box for Report Combined Pedals (we dont want combined pedals).
Set the degrees of rotation (i.e. 900)
Launch LFS via the profiler.
Press CTRL+C to recalibrate the axes. LFS should detect that a G25 is plugged in.
Have a look in here on how to set up the controller in LFS.
http://en.lfsmanual.net/wiki/Options#Setting_up_the_wheel
In Options>Controls;
set Wheel turn (degrees)
Throttle/brake axes: Seperate
Gear shift mode: auto/sequential/shifter
Clutch: axis
Handbrake: button
Hopefully it should work (if the axes are proplerly defined).
When you select Axes/FF, and turn the wheel you should see the yellow slider moving across the blue bar. Pressing each pedal (throttle, brake, clutch) should show the yellow slider moving smothly across the full length.
Try selecting; Remove deadzones: [No]