OK so I got my modified OBD1 harness last night and am going through labeling the connectors now. Apparently my coolant sensor (E30 brown single pole one was cut way back and I was able to retrive it. I cut a connector off my old obd2 harness that fits the plug but the problem is I dont know which of the two wire is power and which is ground. 1 is brown yellow and another is brown violet. Please help asap anyone!!!
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