Bought a civic with a swapped jdm b16a running an obd1 loom and a stock jdm ecu. Anyway bought a power fc and a obd1-obd2a harness kit and had my tuner tune the car. All was great on the dyno but when we turned off the key and restart, the pfc would have the base map.

Have not seen this problem on hondas but common with silvia with swapped motors where the eccs ingnition is not wired correctly and cuts power immediately and doesnt give the fc time to save the data

Does the honda wiring have the same setup with a relay switch to delay power cut to the ecu on shutdown? Anyone have the wiring schematics plz

Thanks