KA DE S13 - Car only Starts when its warm out

[Zaku II]

Having an issue with my KA DE S13 240sx. It will only start when its warm out. I have a brand new battery and also have replaced the fuel pump.

Any suggestions as to what is causing my car not to be able to cold start?
Any help would be greatly appreciated,

Thanks

Ninja///

[modulation]

Check your coolant temp sensor.
There are two on the front of the intake manifold. The one that you care about is more then one wire.
If you have a FSM and a volt-ohm-meter you can check the coolant temp sensor for the proper resistance. If not then maybe just replace it?

The other think would be that your idle air control valve isn't working properly, but it would probably start just die alot.

DOes it not sputter/fire at all? When it doesn't start do you pull plugs to see if it's flooded ?