Howdy Scotty!

My name is Dean, I am 17, and having problems I can not solve within my scope of mechanics.

I have a 1995 4.9L F150 Manual 4x4. It is Obd 1 and I am not getting codes for the issue. Starting out I had trouble starting, and then eventually stalling on the road. Replaced the alternator and battery and the frequency of the stalling went down. I am still having issues sporadically stalling while idling or driving. I have replaced the ignition coil, spark plugs, cap & rotor, fuel pump, andy relays. The engine always conveniently stalled when the right tools are not present, or after leaving a mechanic shop. I also noticed that it seems to stall whenever it is wet weather, though it may be a coincidence. I have pulled the Ecm and it looked alright, though I'll need to replace it eventually. The radio had flickered on and off as well one time when I was having issues stalling while idling during a rain storm.

Just today, I went out to reinstall my Ecm and the battery was completely dead and barely cranked but no start.. I used my voltmeter and it registered .2 volts. I tried jump starting it and that did not work. The truck had sat for 2 days. I did notice that the radio/time was turned on even though the ignition switch is offI. Iam not sure that this parasitic is even the issue with stalling or just another cherry on the top of problems.

Any help is much appreciated, I have invested $800 already and am at the point where any part I purchase is pricy and I have to wisely budget 

List replaced items:

Battery, alternator, ignition coil, spark plugs, cap & rotor, fuel pump, relays.

Suspect: pip sensor, distributor, Ecm, icm, radio, short in wire.

Thanks,

Dean