[200q20v] ECU upgrade question

[DanMurphy1 at aol.com]

Well it looks like I may have made a mistake in sending my ECU to tap.
I guess I will have to start doing more exhaustive research. 
I find myself doing more reading and research than I do wrenching on the car.
I am still confused with some figures, I get 1.5-1.7 bar of boost on my stock 
dash gauge, mostly 1.5-1.6.
When I pinch off the wastegate hose I get a solid 1.9? Is this normal?
Looking over past posts, once chip is installed the stock boost gauge is 
pretty much useless? What should it show on a chipped ECU?
I have a 20lb. boost gauge, but from what I see,boost on a chipped ECU should 
be ?? I have seen posts from 13lbs. to 23lbs. 
Should I pick-up a gauge to read up to 30lbs.?
thanks,
dan

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