Trying to get my Z back on the road (1979 280zx N/A) and while I was cranking my drop resistor began smoking, just a little but smoking none the less. The part numbers are A15-000008 & A15-000009 just got some new ones but would like to figure out why they got so hot to begin with before risking burning up another set. I did notice some of my fuel lines were swelling up and leaking while this was happening. Could I have a bad fuel pressure regulator? That's my best guess.