Boost stuck at 0.8 bar?!

[Kevin McCalla]

My boost seems to be limited somehow.  As soon as i
feel the power come on...it drops off.  The factory
boost gauge constantly reads 0.8bar, even if I'm at
idle.  I know the turbo itself is fine because it will
build boost (power) abruptly and then immediatly fall
off.  I have a fault code that I can't get rid of that
indicates my throttle switch is bad, but I replaced it
last year, and the code was there when the car ran
fine.  Any ideas?  Thanks--

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