I have a 94 22-RE, When it cold starts everything is smooth and normal, after about 3-4min it starts to miss from idle all the way thru high RPM. When driving I dont feel the miss only when in neutral. When I come to a light it doesn't idle great but its not bad. It is bad however when I turn the truck off and go into a store or something (not let it cool down) come back to start it and it idles real rough and low. Once I start driving it back to somewhat normal. I've checked TPS, EGR (valve and modulator), it has new ignition cables plugs, and rotor w/cap. Air filter is new. Any Ideas??