Well the radiator started to leak so i flushed the cooling system and installed the new rad with new g50? antifreeze and that went well. Now after driving it 2days the idle some times would start getting ruff but would clean up with a little throttle. Now its slowly getting worse especialy when its first started. At first it idles great but as it idles for about 5 mins it starts to get ruff (Sound like the choke cable has been pulled if it had one) turn it off and back on and it idles smooth again for another 5 min and ruff. Once its up to temp the idle gets better but not correct. It runs excellent above 1500 cold or hot. When its up to temp most of the time it idles ok except when you drive it hard and come to a quick stop and some times is gets very ruff but no engine light ???? So i am thinking that the intercooler might have a slight leak now caused from me flushing the coolant system. This is bad timing as i need to get it smogged and if it start running ruff when testing it should not pass even with no engine light coming on. Also i had bad luck with the new 660cc injectors and had to replace 3 of them so far as they seeped fuel but its been running well for a few weeks before the radiator issue. Oh i also went down from e70 to e50 then e40 to see if that helped but no change. to idle. Any idea what's going on ???