I have a Daihatsu YRV Gti (left steering, turbo), ECU version P59 (this ECU is for the markets of Singapore and Europe, for vehicle equipped with 2 oxigen sensors). Yesterday i'm replace ECU with P39 (ECU from Japan YRV turbo, right steering, one oxigen sensors, for boost 0.9 kg/cm2). ECU P39 works well, no check engine errors, but injection of fuel a little differently. The first is that it is visible - the engine idling at the opening of injectors varies within a smaller - respectively with the oxygen sensor readings vary in a smaller range (0,4-0,7 V) and on the ECU P59 opening injectors varied in a wider range leads to a change signal of oxygen sensor from 0,2 to 0,8 V.
I think the P30 will work well without errors