The sound from the IACV became quite noisy, as soon as I updated the firmware to 2.169 on emub.
Before, I couldn’t hear the sound at all; I had to adjust it to 450 Hz to make it quite. It was previously set to 300 Hz.
I have 2 wire IACV from Honda.
Has anyone else experienced something similar?
btw, is have this problem on 2 cars.