We just did an engine swap for a 92 civic HB. We installed a JDM B15B Single cam Vtec engine, now, the harnest that came with the engine was cut. So we used the old harnest form my stock engine, car works fine except for the speedometer, and the vtec. what can i do to get the vtec working, some one told me that these a way to use my stock ecu and make the vtech work, or does any one have a ecu + wire harnest for sell.