I built a 5.3 S/C Engine for a customer and everything works well except for one annoying problem.... When in closed loop and below aprox. 2500 RPM the throttle will only open a maximum of 25%. In open loop it works as you would expect opening properly in relation to how far the pedal is pressed. I've looked at the various tables and nothing stands out to me as a place where I can modify this. Any help is appreciated.
Jim