The AFM has a factory fitted IAT sensor. Due to its location this sensor is not suitable for tuning. A suitable IAT sensor can however be wired to the AFM wiring. The AFMs IAT signal is wired to An Temp 2. Factory AFM wiring information follows:

Subaru V10 MAF

1 +14V

2 Ground

3 Mass Air Flow Meter

4 Intake Air Temperature

5 Ground

 

Note: It is important that the factory IAT sensor is completely disconnected as not to affect the after market IAT sensor signal.

 

An IAT sensor can also be wired in using any spare An Temp or An Volt pin (several are available on the expansion connectors). Note spare An Volt channels require a pullup resistor (to +5V) to be added for temperature input use.