Hi, I have a s2 rs turbo. It was boosting ok, then all of a sudden it stopped. After taking a look at it with my mate, the only thing we could come up with is the amal valve not working? There is 0 boost. It's like driving an xr3i at the moment. Any suggestions??

 

Has as hose popped off or leaking? A hose could also be collapsing.

Have you tried by passing the amal valve?

 

Had a check over the hoses. All seems OK. Turbo not spooling at all. How would I pass the valve??

 

There should be 3 hoses coming out of the amal valve. Find the two that come from the turbo (actuator and compressor housing) and join them together where they connect to the amal valve. The boost pressure will now only be controlled by the actuator.