What year is the GV as it will have different ECU’s based on the year it was made and also can you see the error code on the scree? Eg. C45 on the actual LCD glass.
We did not get a reply on the OPs topic to give any feedback.
Start your own new topic explaining in more detail what the issues are if possible. No 2 hyosungs are the same (some are abused and some wete just neglected for years = different solutions)