I can't see any markings on mine, but the plugs are keyed so they can only go in one way. If they are, which pin is + ?
It won't matter which way they are wired.
Tom
^^ unless they fit a back emf diode in the injector??? If they do that's nasty as you will fry the ECU.. Never checked one to find out if they
do mind, I would check with a multi-meter..
Dan
[Edited on 23/11/09 by Bluemoon]
No diodes in the injectors, they wouldn't work properly if one was fitted since they would be very slow to close.