Just read through dyeager535's tbi knock board thread and it got me thinking.
Since I am getting the cylinder select error using a $A1 V6 memcal, with a V8 $8D bin with the cylinder count changed to 6 cylinders, and getting the cylinder select error, I wonder if I could use a TBI 7427 4.3 memcal with a PFI jumper wire put in (just like I did for my 7427 mpfi on my cherokee) Wonder if that would get rid of the cylinder select error? A 4.3 is much closer in displacement to my 4.0 than the 3.1, so knock filter may get along better.

Also wondering, what exactly sets the cylinder select error code anyways? And why would I NOT get it running a V8 8D bin, with a A1 V6 memcal, but once I switch the bin to 6 cylinders, I suddenly get the error? Shouldn't it be the other way around?