2,1 means throttle wiper high

causes are:
1) throttle input wire open or shorted to B+
2) defective throttle pot
3) wrong throttle type selected

the fault is consistant and will not clear until you find what is causing it
the manual for this controller can be found on curtis instruments website here:

you will need to correct the url above to make it work correctly, remove the spaces added to the url ;o)

h t t p://curtisinstruments. com/index.cfm?fuseaction=cProducts.dspProductCategory&catID=9

good luck!