The issue is the regenerative valve supplying unequal volumes of oil. That works for cylinders. Not for motors. Unsure why mine works, but it does. Maybe it's the cheap Chinese motor I used.This is just a shot in the dark, but is it possible that one of the quick connects on the control side is not letting the fluid through? Did you try disconnecting the hoses from the motor to see if the is pressure flow from both hoses?