Aquamist HFS-3 and MINI Tank GB

[LASRGUY]

Back to happy again! But with a dent in the wallet. 6hours of troubleshooting and code clearing labor got the car's electronics running normal without replacing any parts.
The root cause may have been somehow related to forgetting the second fuse in the add-a-fuse or to connecting the negative battery terminal before the positive. I'll probably never know for sure. It's still odd that it was fine for two days before came down with the problems. Hopefully it won't happen again.