Crispin Posted November 12, 2014 Report Share Posted November 12, 2014 ECU: G4+ Xtreme After I downloaded the latest PCLink and fm package and I can't connect to the ECU. The software is frozen for a long time until it gives the "cannot connect to ECU"-message. The ECU was running the previous firmware at this point. Starting up the previous PCLink and trying to connect now gave the same issue as with the new PCLink. I though that maybe the USB drivers got screwed up. So I uninstalled both PCLink's and the driver (and deleted PCLink folders). Then reinstalled the latest version but still got the same issue. Did this back and fourth a couple of times. At the end I left the car for a day and then when I got back I started with trying to connect using the previous version again. It worked. But then I tried the new version PClink once again and got the same issue that it can't connect/find the ECU (of course double checked the connection settings). Now the weirdest thing was when I once again started the previous version and tried to connect - then I got a message saying that the operation required a newer version of PCLink! So it almost seems like starting up the new PCLink and trying to connect it somehow alters the ECU code!? At this point I thought it might be a mismatch of firmware so I ran the firmware updater in the new PClink and upgraded to 5.2.2. That worked fine. Tried to connect with the latest PClink afterwards but....still got the can't connect issue. Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted November 13, 2014 Report Share Posted November 13, 2014 Hi, what have you got your connection settings in PC LINK set to. Does the USB Device show up in your Hardware Manager on your laptop. I have done a few 5.2.2 updates without issues. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Crispin Posted November 14, 2014 Author Report Share Posted November 14, 2014 Hi, I've tested both Auto speed option's as well as selecting the slowest baud rate. The USB device shows up correctly in the device manager. I've also tested selecting the specific USB port assigned instead of the auto option. Something must be off with the new PClink causing this. Also, the status message "searching for ECU" that can be seen at the bottom of PCLink doesn't show in the latest PCLink when it tries to connect.  Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted November 15, 2014 Report Share Posted November 15, 2014 Hi Gustaf, Have you tried using MANUAL connection and not AUTO CONNECT SELECT MANUAL CONNECTION use F3 to go ONLINE. SELECT CONNECTION PORTÂ as manual , drop down select your physical COM PORT BAUD RATE select a slower speed as a test connection of say 38 400 or 57600, save this to the file and try connect. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Crispin Posted November 16, 2014 Author Report Share Posted November 16, 2014 Hi, Yes that is what I meant with trying both options. Doesn't work. Quote Link to comment Share on other sites More sharing options...
Simon Posted November 17, 2014 Report Share Posted November 17, 2014 Do you have a dash or any other device connected to the CAN port? If so try connecting with this unplugged. Also make sure the ECU is fully powering up. Check you have a full 12V at the ECU power pin. Quote Link to comment Share on other sites More sharing options...
Daniel Bailey Posted November 17, 2014 Report Share Posted November 17, 2014 Please update if this is resolved, and also if anyone else has upgraded to this firmware please confirm if it is or ideally HASN'T been an issue... I ideally will be tuning a G4+ car tomorrow and while I would like to give it a go with the new equations etc I am loathed to run the risk of bricking an ECU Quote Link to comment Share on other sites More sharing options...
Simon Posted November 24, 2014 Report Share Posted November 24, 2014 It will be due to us pushing up the connection speeds. If the AIM is over CAN then the best solution is to remove the TX and RX serial wires out of the loom. This is easiest to do at the ECU plug. Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted November 24, 2014 Report Share Posted November 24, 2014 Hi Daniel, I have upgraded ViPEC I SERIES without issues so far. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Steve1436215419 Posted November 25, 2014 Report Share Posted November 25, 2014 What you do Gustaf is to open up the ECU and disconnect the wires at the board connector. You will see what i meen once you got it open. Quote Link to comment Share on other sites More sharing options...
Simon Posted November 26, 2014 Report Share Posted November 26, 2014 Steve is on the money. Once inside its very easy to get them out. Quote Link to comment Share on other sites More sharing options...
Crispin Posted November 26, 2014 Author Report Share Posted November 26, 2014 Ok good then I'll do that. Quote Link to comment Share on other sites More sharing options...
Crispin Posted December 15, 2014 Author Report Share Posted December 15, 2014 What size is the Torx screws that is used on the ECU box? I didn't have smaller than T10 closeby and need to order. Is it T8? Quote Link to comment Share on other sites More sharing options...
Simon Posted December 16, 2014 Report Share Posted December 16, 2014 Yep they are T8 Quote Link to comment Share on other sites More sharing options...
Crispin Posted December 17, 2014 Author Report Share Posted December 17, 2014 I opened up the box and removed the pins from the board connector and it seemed to do the trick. Thanks. Quote Link to comment Share on other sites More sharing options...
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