Injector harness and ecu with aquamist 2d system

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I asked this question on the supra forum but nobody seems to know. I am down to the last two wires of the aquamist 2d system. These two wires need to be connected to the injector harness wires so that the aquamist computer can control flow. Here is a diagram of the 2d system for reference. I am working with the red wire and green wire in the pic. The instructions are saying that if the factory wires use a resistor inline with the injetor harness then i should connect the aquamist red wire before it or at the ecu. My first question is how do you know if your injector wires use an inline resistor? Second if it does what pins on the ecu can i connect the red and green wires to according to the chart? Third which wire off of the injector harness or ecu carries the positive and wich wire carries the negative to the injector?