paulroun

Hi, Have Subaru Classic import wagon.
I have upgraded the ECU to z4 and 3 port boost controller.
I have been told should be getting approx. 16 psi boost.


Issue I'm having is I get approx. 15psi but its only for about 2 seconds then drops to 11 psi.


Anyone have any ideas what cause could be.


Thanks

Jason Dockree

clean the boost solenoid fist and see

paulroun

Is that the boost controller??
The three port ? And if so how do you clean them
cheers

Jason Dockree

there is a vid on youtube and it is the three port

stuhanson

Blast the ports with brake or carb cleaner whilst triggering it with a 9v battery and switch and a few wires soldiered together if you want to clean at test it on a bench.