I was actually messing around with one my RTRs yesterday, as I was having the issue the potentiometer not going all the way to 1024 in either direction under the calibration test. So I pulled the pot. and changed the wires. Looking at it shaft forward, from left to right; black/blk yellow/red< I think it was red.. Anyway, I switched them, fired up the game and the steering wheel didn't move at startup, and the Steering wheel not responding message came on the screen. But I did have f.feedback once the game was going.
So, maybe the wires on the potentiometer are back wards?
And I haven't yet gotten the pot to read 1024 in either direction. The pot doesn't look familiar, so I have ordered a proper one; we'll see.