Hey guy I got a problem with my swap. When started it idles very ruff what mean is it starts then has to chech up then idles fine when you give it gas and let it come back to an idle it almost dies and some times dose it is kinda hard to start after that what y'all think I will say I have one o2 sensor in right know driver side in passanger side plugged in but not in header. If you unplug the iac sensor what should it do mine dose nothing