Alright soooooo this is the deal. If you're wanting to put a G23 in your 5th or 6th gen accord that's auto. Don't do it unless you have the money to spend. Apparently the accord only has one ecu so that means the tranny computer is incorporated into it as well. If you have researched well and found out that the prelude uses 2 computers, 1 for the engine and 1 for the tranny. Since the accord only has 1 this build or swap won't work unless you can afford or are willing to convert to manual which eliminates the tranny ecu entirely. So yes it does suck, but good at the same time and that is what happened to me. So if you got an auto switch it to manual, but there is one theory I came up with if you want to keep it auto. Just get a h22 automatic tranny swap it in and have an h22 harness for auto. I believe you would have to get the whole harness inside and out, but this is just a theory, so if you try and it doesnt work dont blame me. So since I'm basically 95% done, I'm going for the conversion to manual. Good luck to alllllllllll