I recently posted asking about an ECU for H22A1 motorswap, but... my mistake, i actually own the H22A JDM motor, sometimes i confuse the numbers. Anyway, i was told i needed the OBD1 P113, is that still the case with a JDM engine?

Yes, the USDM engine and the JDM engine both run off a P13 ECU.

i think the only diff is the JDM ecu will be slimmer?? i know thats the case with other ecus.