My FD starts, idles and accelerates smooth until it warms up to operating temp. and then it idles rough, but not all of the time. When it idles rough and I start out it has no power, even with the gas to the floor, until around 2k rpm and then it accelerates like normal and no problems up through the rest of the gears. The other half of the time it idles fine and starts out with plenty of power. It’s all stock, no mods. Any ideas?