Ok, i swapped in a j-spec B18C1 into my 93 civic ex. I heard the motor runs off the knock sensor, but i'm running a mugen chipped p28, and have the stock harness. the stock harness has an O2 sensor, so i have no oxygen sensor, and i was told that that causes my ecu to run in tune/default mode. how can I fix this? i am located in connecticut, and would be willing to take it to a shop or someone who knows what they are doing. Please Help!