How to tell if wastegate is bad?

[laserturbo91]

How can I tell or test to see if my wastegate is broken or stuck? The car is stock and has a little over 200,000 miles on it. Makes some boost, but not all, can't really find any boost leaks.
Thanks
Jeff

 

[BitAddict]

Check my "1g turbo help" thread. GTM graciously helped me out and told me what to do!