If I set this to 13.5, the truck idles at 13.5.
If I set this to 14.63, the truck idles at 14.63-14.7
If I set this to 14.999 the truck idles at the AFR I have set up in B3647 (15.5 with a command AFR of 15.06)
If I set this to 15.25 the truck idles leaner than my target AFR (15.6-7 with a commanded AFR of 15.19)
If I set this to 15.5, the truck dies from being too rich (runs about 60-90 seconds and goes from 12-10 AFR and then dies).
What gives? For now I'm using 14.999 and pretending I understand it