Help with HKS EVC III

[rob82]

Think this is one of the EBC that has the closed loop PID boost dosn't it. My recolection of tuning the boost is to set the boost to your desired level and command the duty cycle to suit.

Sounds like you have to much duty cycle early on which will cause the boost to spike as the boost climbs to quickly for the controller and all of a sudden it has to damp the oscillation.