I don't think your pinouts are wrong, it might just be the wheel controller expecting a high value with the original pedals and you're giving it a low value with the new pedals. You might be able to use an inverter (a NOT gate) to invert the value and send it to the wheel, it might solve your problem. But, this is trial and error, you just have to try a few different things, and hopefully one might work. On the other hand, you might end up damaging your wheel if you give it too much voltage, so be careful.