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Thrifty said:
Hey guys,
I Just received the clips for my new RC Engineering injectors and I was getting ready to go ahead with soldering the new clips to the wiring harness.......Only problem is, I don't know if the polarity of wiring matters. The new clips obviously don't have any extinguishing markings for polarity and I'm a bit confused. Any clue???

Thanks, Thrifty

It doesn't matter. One wire is a constant 12V and the other goes from 12 to GND. In the wiring harness, the constant 12V will probably be the same color with the signal wires being different from harness to harness.
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