From factory, models supported by the G4X MX5Link Plug-In ECU are fitted with an IAT sensor in the AFM. This sensor is suitable for use in naturally aspirated applications. In forced induction application a suitable fast responding IAT sensor must be fitted just prior to the throttle plate. The G4X MX5Link Plug-In ECU supports the following options for IAT sensor installation:
1.AFM IAT – In naturally aspirated applications the AFMs IAT sensor can be used. The AFM IAT sensor is wired to An Temp 2.
2.IAT Through AFM Wiring – An IAT sensor can be wired through the AFMs wiring if required. Connect the IAT sensor to the AFMs IAT and sensor ground wires (consult factory wiring manuals). An Temp 2 is wired to the AFMs IAT sensor.
3.IAT Through Expansion Connector – An IAT sensor can be wired directly to the ECU through the ECUs Expansion Connector. Note spare An Volt channels can be used as temperature inputs when a pullup resistor (to +5V) is added.