Quote:
I've got a log here , rpm's stable within 30 revs. map increases from 62 to 86 in 6 logs.
The AFR Target moves around.
OK I can understand interpolated data .
open loop AFR target at 85 map is 13.0:1
90 map is 13.0:1
so why does the target at 86 map expect 13.1 ??
.... still wading through logs.
there are all sorts of interpolated factors as well as rounding of low resolution (8 bit) factors. it's possible you're putting 13.06 into one end of it, and 13.0 comes out in the table but 13.1 in the log. i wouldn't concern yourself too much with such things, target the ballpark then fine tune for results