Yes perhaps it as an error. Mauby the number are negative value on table.
I remap all ecu by experience, not by real dergrees. When i remap the ecu then i mesure the fuell ratio by a wideband, by a exhaust's themperature and by a knock sensor.
When the fuell ratio on wideband shows 14,7:1 at iddle, 14,2-13,8 between 1.200-5.200 rpn and 13,8-12,5 until 7.500, and the engine has no knocking by a 95 octane gas, then it is all rigths. fuell economy by power !!