So I have a 1998 Honda Civic Dx with a d16z6 swapped into it that I recently just got. Car runs fine no misfires just a small idle coming from iacv. My only other issue is when I’m in gear and I let off the gas the car will make like a grinding rubbing noise as well as have small tugs. I’m thinking maybe input shaft bearing but not 100% sure. Keep in mind the car drives fine no slipping clutch or grinding gears.