P0301/P1399 Cylinder 1misfire/manuf. ignition sys control or misfire?

Yes if the ground or the power is not properly getting to the distributor it can cause misfire. However what you are describing is more along the lines of timing. If the timing of the engine is correct, is the timing of your distributor that is causing problems. When you first turn your car on it opens up the throttle body fully so that is why it won't misfire at first but when it warms up the throttle body is set to normal and if the timing is wrong your vehicle will miss fire, as you probably have the ignition happening before the piston gets to its max efficient height, causing miss firing. Adjust your rotor accordingly when your vehicle is warm.