Sorry to dig up old thread, but can anybody tell me where the restrictor should be?
On mine, I have a 6mm line going from the intercooler pipe to the actuator, with a T piece in there that has a 4mm hose going to the bottom of the solenoid, then another 4mm hose from the top of the solenoid to the bov return pipe. My restrictor is in the 6mm hose going from the cooler pipe to the T piece.
I've noticed that it runs 0.3kg/cm2 (~4psi), rising to 0.38kg/cm2 (~5psi) at 4500rpm when the solenoid kicks in. I've disconnected both lines from the solenoid and joined them to test with, and when I do this it make 0.6kg/cm2 (~8psi), so I know it's not something like the gauge reading wrong and leaves me thinking the restrictor is in the wrong spot.
Am I right that I should move the restrictor to the 4mm line going from the T piece to the solenoid?