so i have a mini me swap. it's a y8 head and im using the odb2a ex ecu. so when im driving when i try to hit vtec the motor cuts off. it cuts off at exactly 5700rpm. and if i upshift and the rpms drop below 5700 it runs fine. any ideas?

 

and i checked my ecu and i have 1 code on. it's #45 which is "fuel ratio too lean or too rich" how can i adjust that? my whole motor is stock.

 

solved

 

how did you fix it?