Idling and running problems when warm

Truck starts fine and runs good until it is warm. Then it will drop idle at a stop sign or light to roughly 400 or even 300 rpms. It will die have to start and hold idle at about 5 to 500 rpms to make it run also noticed today it wants to***** like it is losing spark or fuel not sue of which as no error codes or any lights will come on- After it cools everything is fine and will run ok until it warms up all filters including fuel are new as of 1 week ago Idles slow at about 400 when warm and in park