The G4X FZJ100Link Plug-In ECU supports several options for fitting of an IAT sensor. Any one of the following options can be used:
1.Factory Ambient Air Temp wiring – An Temp 4 is wired to the factory ambient air temperature sensor, depending on the location of this sensor and any modifications it might be better to replace this sensor and reuse it's wiring to connect the new one.
2.IAT Through Expansion Connector - The expansion connector provides ground and temperature channels for the connection of an IAT sensor. Wire the sensor between the Ground pin and an An Temp channel pin. Note spare An Volt channels can be used as temperature inputs when a pullup resistor (to +5V) is added.