as far as i am aware it just needs disconnecting from the actuator. i fitted my HKS actuator last weekend and i bypassed lo boost by removing the hose to the actuator and the steel pipe which travels up the block (behind the black plastic turbo pipe). From there it connects to another steel pipe via another hose (there are 3 pipes which sit above the cam cover, it's the one on the left) At the end of that pipe there is another hose which connects onto a solenoid.
can anyone corfirm this is correct? i havn't been able to test mine yet