I have a 2 car bank and every few months car one will get a bunch of intermittent problems with I/O mismatch faults and can faults and checksum faults parameter faults etc… I reload the files form the usb using the uit and car takes off runs fine for months then it happens again. Just wondering if anyone has any ideas what would cause it I’ve replaced the battery on the cpua last time I was here before reloading the usb but other than that idea it’s kind of baffling me. Thanks in advance.