If you can run your engine til oil temp is is normal, shut engine down, pull crank sensor out, let the oil drain out. Replace sensor, measure the oil that came out
If more than 6 oz, you are sumping, if less than 6 you are within the HD range for oil in the crank case
Doing this test will rule out the sumping as the problem
Next test, I would disconnect the wiring @ the throttle actuator, clean the pins with contact cleaner, reassemble with light coat of dilectric grease. Does this make engine come out of limp mode?