I have an Innovate wideband that I am using to replace the factory O2 sensor on my zenki S14 SR20DET. As such, I need to send the narrowband signal to the ECU to maintain proper operation.
Maybe the heat is getting to me, but I'm not certain which pin I need to send the narrow band signal to. Here is the FSM schematic for the O2 sensor.
I don't understand the "H" and "S" on pins 115 and 29 at the ECU. Obviously the signal goes to one of these, but which one? Also, what should I do with the other, cut and tape or ground it?
I've searched a few forums. There seems to be a lot of people who talk about doing this, but I can't find any guidance. The rest of the FSM is kind of vague mentioning inputs and outputs without mentioning from and to which item (ECU or O2).
Thanks.