i looked up obd-2 pinout for primary o2 sensor and it says c16. I went out to my car and i already ran a wire to the ecu but i dont know how to find "c16" I looked the wiring diagram in the haynes manual and it says its a white wire but on the wiring plug in there are 2 white wires in different locations. One wire which i think is the right one gets braided into by a brown/black wire that down the line somewhere i think is braided also to the knock sensor and to the IAT sensor. Im no genius when it comes to wiring diagrams, I just wanna make sure i dont blow my gauge by hooking up the wrong wire. Knowing how to find "c16" on ecu will help. 4 a p72-a05 obd2-b Please help thanks!