Can anyone shed a light to which pipes connect to which ports on this denso unit... (wastegate actuator, boost source and the vent to intake)

I fitted a 3 port  Perrin ebcs boost solenoid last year but recently just lost all boost it won't get above 0 ont he guage but can hear the turbo spooling so trying to eliminate what it might be by first swapping out the solenoid to this denso one as pictured below as checked pipes for leaks and can't see anything.

If this isn't the issue my next step will be to remove the turbo and up pipe to check those.

 

After searching through a tonne of other after market boost solenoids I found what I was looking for :)