AEM 30-6320 Series 2 Plug & Play EMS - Manual (Page 3)

Page 3 of 13
Read and understand these instructions BEFORE attempting to install this product.
1) Install AEMTuner software onto your PC
The latest version of the AEMTuner software can be downloaded from the AEMTuner
section of the AEM Performance Electronics forums. Series 2 units are not supported
by the older AEMPro tuning software.
2) Remove the Stock Engine Control Unit
a) Access the stock Engine Control Unit (ECU). The location of the ECU is behind the
glove box.
b) Carefully disconnect the wiring harness from the ECU. Avoid excessive stress or
pulling on the wires, as this may damage the wiring harness. Some factory ECUs
use a bolt to retain the factory connectors, and it must be removed before the
harness can be disconnected. There may be more than one connector, and they
must all be removed without damage to work properly with the AEM ECU. Do not
cut any of the wires in the factory wiring harness to remove them.
c) Remove the fasteners securing the ECU to the car body, and set them aside. Do
not destroy or discard the factory ECU, as it can be reinstalled easily for street use
and troubleshooting.
3) Install the AEM Engine Management System
a) Plug the factory wiring harness into the AEM EMS and position it so the wires are
not pulled tight or stressed in any manner. Secure the EMS with the provided
Velcro fasteners.
b) Plug the comms cable into the EMS and into your PC.
c) Turn the ignition on but do not attempt to start the engine.
d) The USB drivers must be installed the first time you connect to a Series 2 EMS with
an onboard USB port. When the Series 2 EMS is connected to the PC’s USB port
and receiving power from the vehicle, the “Found New Hardware” window will
appear. Select “Install from a list of specific location (Advanced)” and browse to the
following folder: C:\Program Files\AEM\AEMTuner\USB Drivers (Series 2)\
e) With the AEMTuner software open, select ECU>>Upload Calibration to upload the
startup calibration file (.cal) that most closely matches the vehicle’s configuration to
be tuned. Check the Notes section of the calibration for more info about the vehicle
it was configured for. These files can be found in the following folder:
C:\Program Files\AEM\AEMTuner\Calibrations\Mitsubishi-DSM\
f) Set the throttle range: Select Wizards>>Set Throttle Range and follow the on-
screen instructions. When finished, check that the ‘Throttle’ channel never indicates