Ok so I dont know too much about tuning but I had my car tuned on chrome the other night. It was running fine prior to the tune. I'm running 440 rcs on a gsr. After the tune my tuner put my ecu back in which I was not able to rev past 3.5k. Codes came back for fule injection error. Cars in limp mode. I have read up on a few problems like this but can not find an accurate answer. I could use any kind of help. Thanks!