Have a 03 evo this is a quick run down of whats going on.......Upgraded my injectors from 680-1200s added at 3 port(grimmspeed) and changed my front o2 with a evo 9 o2(went bad) When trying to tune the car is at 10.5AFR and when starting to get into it jumps to 15.8 and falls down to 14.9. Its a crazy jump from rich-lean. After hours of flashing and setting latencies and scaling i cannot get the car to idle or even able to change the tune. Its just wanting to do run super rich at idle and go lean when ticklong boost?
Questiin is would faulty injectors ause this? Running an evo 9 o2 on a evo 8 cause this? Faulty ecu?
No check engine lights are on. Im running tephra v7 and me or my tuner cannot seem to figure out the reason? PLEASE HELP ASAP

 

Before changing the o2 and inj/boost controller. Car ran fine. Was a little rich, but idle smoothly and drove from TX-GA no problems. Its just weird i changed 3 things and now i cant even get it to idle.