What ECU are you running? This is probably the biggest question. If it's a PowerFC, I'd probably change the ECU and get something newer that will handle the injectors in a nicer way.
FYI:
Racebox RE7R Custom Tunes Released!
https://goracebox.com/.../2017-infiniti-q50-q60-re7r-tcm...
FOR GEN 2 (21+) VEHICLES, PLEASE SEE NOTE AT BOTTOM
See more
But whomever tuned your car is the tuner you should go back to, AMS, Sonictune or BT Tune....
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