I installed the IAT relocation kit on my car because I am running a Vortech V3 non-cooled kit. I installed it by using the GY and GY-RD wires that went to the MAF (which has an IAT sensor in it). The GY wire is the IAT SN input to the PCM and the GY-RD is the SIG RT to the PCM. Can anyone explain how this works? I now that the IAT sensor is like a 2-wire RTD (resistance temperature detection) that varies resistance based on temperature. How does this sensor interact with the PCM. The GY-RD wire looks like it is a common. I want to use the sensor in the MAF to record the IAT before the supercharger; does anyone know how I can use the IAT sensor for this purpose?
I thought one was 5V input (sensor input) and the other was the signal voltage return (temperature). Not sure what the voltage signal vs. temperature range is. Shouldn't be too hard to figure out. I could be wrong on the whole thing, but it makes sense to me. The amount of resistance drop across the resistor (sensor) is read by the PCM to determine temperature.
