You don't have to buy G25 pedals to have 3 pedals system. Just like me, you can buy a 2nd simple wheel (wheel doesn't have to work, only pedals) and use it. Works nicely
Also try unlock and recalibrate axises in game and see if it works. As for shifter, its a known issue, return your wheel to Logitech if you still have warranty
Sounds weird to me, I have the same wheel. Does it happend randomly or just in several cars? What does the throttle bar tells? Have you tried calibrationg the wheel both in wheel's settings menu in Windows (or in profiler) and in game?
My name is Arthur, everyone calls me Art, my favorite number is 555, so I use art555 as a nick everywhere. When I was demo, I used art555 account, but when I tried to upload a hotlap it required the exact same name as in the replay so I had created [RF]-art555. I was too excited and rushed when I was buying S2 so I registered with this account