I'm not an asshole so if this is double posting,I'm sorry. My car is runnig now but the idle fluctuates between 1500 & 2000 RPM. I'm still geting code 20(electric load detector)

I got p30 obd1 ECU, OBD0-OBD1 adapter, 1990 integra RS and 2nd gen b16a. Pin# d10 on the OBD1(ECU) side(which is electric load detector) is going to b19(P/S oil pressure switch) on the OBD0(car)side. I'm tired.I need help... Thanks and sorry for the double posting thing.