performance

I have a b18c1 gsr motor in a civic coupe..the problem i am having is when it is on a cold day the car starts up then it idles low then it dies, but when you lightly step on the gas and keep it above the low Idle it wont die and then it warms up then it runs fine...and on a Warm/Hot day the car starts up fine with no problem..What could cause the car to die when it's on a cold day?let me know..thanks...