Evo x 2008MR have some questions?

[jrsimon27]

hi guys i recently downloaded my stock rom into my ecu after doing it i disconnect the usb cable and i shut down the car when i started the car again it had the check engine light on it had 2 error codes one was for disconecting the ecu from ecuflash and the other had something to do with the gearbox why did this happened?
was it cause i didnt upload the stock rom back up to the ecu?

if i want to change the rev limiter and set it to 8000rpms which of the 2 values do i change the rev limiter on or the rev limiter off?

thanks guys