Steven Tovar

Can someone please tell me what ecu ineed in my 99 civic ek HX coupe ??! It has a d16y8 swap instead of original y5 and has a p2p-a33 which is 97-98 . I bought the p2p-a12 ecu which is for 99-00 civic but it dont match n fit with my harness . Iwas told my ecu was bad or isnt the right one because of delayed accelerationn , bad gas mileage , and low and high idles. Someone give me advice . Pic of my harness idk if its the hx harness still or was switched