MKIII (1986.5-1992)
I have been trying to setup my safc2 with my 1/2na-t, and i can't get it read anything above 51% when I'm holding the flapper door wide open. I have tried every flapper setting (0/0 through 8/8) and all but 0/0 gives me between .4 and .6% when closed, and 47-51% when the door is being held open...