Logitech G27 Throttle jam ???

[Connor895]

so had my g27 for year or 2 now and starting to get problem with pedals i can be going down a straight flat out and lift off the throttle to go in to the corner but ingame the throttle stays maxed out for a second or 2 dose not do it with any of the other pedals any one know what might be going on and how to fix this ?
any help will be appreciated
Thanks Connor895