firstlude92

So i finally got the right ECU put into my 92 si with the jdm h22a swap. before this i was just using the h23 ecu that came with the car and the car ran fine, idled great and everything but no vtec. so anyways i got the correct ecu today and plugged it in. but my car runs like **** now. when you push on the gas there is a delay before fuel is delivered it seems like, it like bogs down, has no power at all. so i'm thinking i'm in limp mode! as of right now i dont have a knock sensor in my car and i'm using the stock wiring harness from the h23 and my jdm motor never came with a oil pressure sensor. i'm also throwing a check engine light. witht he old ecu i would only throw a check engine light once the car ran for about 15 min. so what do i do to fix this problem?