Hey guys, I've been running circles around this 1986 nissan 300zx z31. It's kind of a long story but I lost cylinder #2 it tarnished spark plugs within 30 mins of driving. Then losses all power to that cylinder. I've changed spark plug 4 times trying different thing replaced cap and rotor did a compression test as well as tested inject ohms read the same as the rest and holds pressure in the line. I'm really stumped as I also noticed when I pull the spark plug wire about 1/2 and inch away from the distributer to where it's still arching back and fourth it runs great perfectly running vg30 lol. Please ask questions ive done more test just wanted to keep it nice and short!

 

Bump

 

Have you tried an new plug wire?