I am currently running a tuned E-manage and it was tuned for 270cc RC injectors.tomorrow i am putting in new 310cc RC injectors but the person who does my tuning isn't available for a week or two is this going to damage anything or trip any sensors or codes. or will it be fine.thanks for the feedback!

 

Yes putting those in will increase your fuel output by the difference between the injectors. For example: if you put 1000cc injectors in a car that normally has 500cc injectors without doing anyhitng else all of the sudden your car will get 2x as much fuel and try to trim the fuel output becuase its running too rich.

Resulting in poor performance.