I have a new set of fuel injection plugs for my 280z's wiring harness.  The wires leading up to each plug look the same so my assumption is it doesn't matter what side of the plug they are attached to?   If someone could comment I would appreciate it.  

That's right, it doesn't matter.  You're just passing current through the solenoid coil to energize it.  Direction doesn't matter.  

1 hour ago, Zed Head said:

That's right, it doesn't matter.  You're just passing current through the solenoid coil to energize it.  Direction doesn't matter.  

Thank you!