If I understand it correctly, the ECU controls the deviation and corrects the flow for each injector (fuel quantity correction). According to VIDA, the acceptable deviation is ±4.0 mg/cyc. In my case, these deviations are within ±0.5 mg/cyc. The replaced injectors were also within ±0.5 mg and knock was present. I swaped injetors nr.1 and 4, but knock is still there so i beleave it could be something else
Is it possible that the ECU is getting false readings from the injectors?
All injectors are coded.