Tom Posted July 17, 2012 Report Share Posted July 17, 2012 I have not yet installed my G4 Extreme (wire-in). Before I do, can I upgrade the firmware now by supplying power only to the ECU (with the rest of it not yet hooked up)?  Just thought, that way, if I had trouble updating the firmware, I'd have time to sort it before the old engine management is removed and the Link is installed..... Quote Link to comment Share on other sites More sharing options...
Scott Posted July 17, 2012 Report Share Posted July 17, 2012 Hi Tom, Yes, you can do this. You will need to supply power to the ECU and then connect to your laptop and carry out the firmware update. Let me know if you have any trouble, Scott. Quote Link to comment Share on other sites More sharing options...
Scott Posted August 6, 2012 Report Share Posted August 6, 2012 Hi again Tom, Are you trying to connect with just power and earth connected or do you have it installed in the vehicle? When you say that you can see it is on COM 3, is this in windows device manager? We have PC's here running windows seven that connect with no problems, so that should not be the issue. It may be worth trying to re-install the PCLink/USB drivers. It could also be worth trying a different USB port. Scott Quote Link to comment Share on other sites More sharing options...
Tom Posted August 7, 2012 Author Report Share Posted August 7, 2012 Ok, baby steps, but I was able to get the ECU to connect to the computer. Didn't really do anything differently, but tried connecting in different order, etc. and it worked. So that's good, thanks. Next question - my ECU has firmware 4.8.1 and I see that the latest is 4.9.3. When I looked at the firmware upgrade help file, it said it is recommended for the dealer to upgrade the firmware as there are features that may need to be configured. When I did click on firmware upgrade I did not get the DOS-based screen shown in the help file, but rather a pop-up box warning that the ECU must disconnect? So, is it worth updating to 4.9.3 from 4.8.1? If so, should I really send it back to the dealer or can I do it myself and just click through the warnings? Quote Link to comment Share on other sites More sharing options...
Simon Posted August 7, 2012 Report Share Posted August 7, 2012 As the ecu is not fitted and tuned it is no problem to work through the warnings and do an upgrade. Quote Link to comment Share on other sites More sharing options...
Tom Posted August 7, 2012 Author Report Share Posted August 7, 2012 Perfect. Will do, thanks. Quote Link to comment Share on other sites More sharing options...
Tom Posted August 8, 2012 Author Report Share Posted August 8, 2012 Worked like a champ, thanks! Now onward to wiring it in... Quote Link to comment Share on other sites More sharing options...
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