My friend has a 2000 civic ex, and he swapped a siR2 motor in. His motor seems to have a lot of problems right now. First the ecu that came with the motor is obd1 and he couldn't make it work with his obd2 car. So he is running a sohc ecu on his dohc vtec motor. He is also getting very strange speeds out of his gearing. He only gets to 45 mph at the top of second, and 90mph at the top of 5th. He is getting fuelcut too early, as the rev limiter stops him a little over 7k rpm. He recently ordered an itr ecu for his car, but what's happening with his car right now?