The G4X JZX100 ECU has one jumper pin which needs to be set. By default the jumper is set to ground, when the jumper is set to 5V it supplies 5V power to the MAF EVG pin enabling a MAP sensor to be wired into the MAF plug using the E2 pin for ground and VG (AN Volt 6) for the signal. An IAT Sensor can also be wired into the MAF plug using THA (AN Temp 3) and E2 for ground.
