Here is a diagram for the 91 EFI systems. It doesn't have any of them listed as "X11" but you can probably figure it out from here. There are some significant differences between the carb AC system and the EFI system when it comes to wiring.
Edit: Not sure why the image is showing up so small. You can see it full size here:
[url=
:13yh9ulj]B2200 efi & B2600i AC Wiring Diagram