When I was datalogging everything seemed hunky-dory. I could see everything, MPH and RPM in sync with the actual vehicle readings (I assume the other readings were correct, there's just gauges that give a range not actual value on the car). The frame checksum failure probably happened when I started the car (forgot to press the stop icon, before I started the engine :redface: ). Do you think it works partially but it's not 100% yet? I didn't think I could datalog, if it was having suspend/resume command issues.