HELP!!!! My boost's going crazy (with VIDEO)

[ill12will8]

I start my car up today and my dic boost guage starts flipping out I don't know what's going any help... I know I know I need a real guage I'm working on so please spare me that simple answer...YouTube - Boost guage in 00 GP GTP

[OH4CompG]

Could be a faulty map sensor? Also check that your boost bypass valve is opened up all the way when you start te car. If your vacuum line from the vacuum tree to the bbv is cracked or leaking it won't pull the valve open.