Communicating With Your ECU

After PCLink installation, you will be able to connect the G4X ECU to the laptop to perform set-up and tuning work.

1.Connect the ECU to your laptop using a Link G4X ECU USB Cable. If not supplied with the ECU, these can be purchased from a Link dealer. No other adapter or cabling is required. Connect the cable to the connector labelled USB.

2.If this is the first time you have connected a G4X USB ECU to your laptop follow the driver installation instructions that appear. When prompted if you want to install drivers select 'Continue Anyway'.

3.Start PCLink by double clicking on the PCLink icon on the windows desktop.

4.Switch the key to the ON position. This will provide power to the ECU.

5.In PCLink, under the 'Options' menu, select 'Connection'. The connection options dialogue will open. Select the correct COM Port number from the drop down list or select auto for automatic com port detection.

6.PCLink offers both mouse and keyboard control. To establish a connection between the PC and ECU press the F3 key. The same process can be used to disconnect. If a successful connection is established, PCLink will download settings from the ECU, otherwise you will be warned that an error has occurred.

7.Make sure the connection shows “ONLINE” in the top right corner of PCLink.

8.To permanently STORE any changes made to the ECU press F4. If this is not done before turning the ECUs power off all changes made will be lost.