i have codes 15,19,20,22

15 ignite
10 auto( my ecu is auto so i have always this code)
20 ELD
22 vtec oil presssure swith

i just swapped a d15b vtec inside my 88si, i made my own harness using the pinouts in this site from turboxxx pinouts, i'm using my old intake and obd0 injectors, i bought a vtec head and dizzyand an auto p08 ecu, the car didnt work after i connect everything, i dont have spark, i double checked the harness and i found that i dont have A10 on my obd0 harness, its blank, but i want to ask 2 questions:

1) how to fix the codes problems?
2) when i switch my car own, it started to give codes, i guess this is wrong cuz i have to ground the check codes wire to check for the codes, right?

plz help