MickeySteffo Posted April 11, 2016 Report Share Posted April 11, 2016 I just got given a G4 Xtreme ecu (red one), im not sure of the condition of it as the previous owner had no history on it.It didnt come with any cables or connectors.Ive had a quick read through some of the instructions and i cant seem to find a clear answer to my questionFor me to connect the ecu via usb do i need to have the ecu powered up from the AMP connectors? or will the usb power up the ecu letting me connect to it?I ask this as i need to buy the ECU USB cable and Id rather not spend money on the AMP connectors before i know it works.Cheers Quote Link to comment Share on other sites More sharing options...
Scott Posted April 11, 2016 Report Share Posted April 11, 2016 You need to power the ECU up through the main wiring connectors before you are able to connect to it with your laptop and PCLink. Quote Link to comment Share on other sites More sharing options...
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