Cold plugs, cold weather cold start idle implications

[niterydr]

Is the car tuned? Many "tunes" will not address cold start as vehicles are very tempermential in cold weather conditions.

Another issue is that when it is cold air leaks are even more vital. My truck for example, runs great, but I know there is an air leak either around an injector or the intake manifold itself, so when it is really cold, it will not want to idle without help.

So check for leaks first.
Also, since this is a tech thread, what is the vehicle and mods?