Hey, i just wanted to ask you. How did you get the engine to run properly with your stock ECU? Do you have a chipped ecu or you running a tuned OBD1 ecu (p28)? Let me know, im thinking about doing a F20B swap in my soon too. I have a 97 Prelude 5 speed ECU, but i know i will need to bypass the immobilizer. Let me know, again if the 97-01 prelude ecu works good with the F20b engine.