'82 300DT @198,000 mi.
Ressurrected diesel will not crank at all unless @80 degrees(fully warmed up). No click from ignition-nothing. However, I can always start it within 1 second by bridging the front two screws in the junction box on the inner right fender well. Starter(and solenoid) replaced-no fix.Battery new.Neutral safety switch replaced 1 month prior to this problem and I had no problem with the ignition immediately after safety switch repair.Will not start in neutral. No voltage at lavender(purple) wire on forward-most terminal in the fender well junction box with key in the start position.
I was suspicious of the ignition switch but the change with engine temperature is confusing. Is there a spot(junction) somewhere along the course of the ignition wiring that I could check?

Starting With Pliers in New Orleans,
Greg