ecu fuel trim

[jondee86]

By coincidence, last night I read an interesting comment regarding the
Freedom ECU. It seems that when in self-learning mode, instead of the
ECU waiting for the load/rpm combination to place the cross hairs near
enough to the centre of a cell before making a correction, it takes a value
at random, and interpolates proportionately between the four nearest cells.

Adjusting cell by cell takes a lot longer, as the cross hairs have to linger
near the centre of the cell for a few milliseconds, and this does not happen
so often. Interpolating between the four nearest cells can always be done
with no waiting time.

I didn't explain that very well, but it ties back to your original post

Cheers... jondee86