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Discussion Starter #1
My 2003 saab 9-3t linear will only produce half boost, I do have a check engine light code p0033 I replaced the faulty part and cleared the code, it then was producing full boost but after 2 miles the check engine light came back on and was only putting out half boost. I've ready other threads related to this but they were from 7 years ago and no solution seemed to have been found. I can repeatedly clear the code and it'll put out full boost for a couple miles. It's like its going into limp mode but I can still accelerate pretty quickly, just not as fast as if it had full boost.
 

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what code are you getting now..what part did you replaced..there are 2 valves could be either the on the turbo or on the inlet manifold..Also check the vac pipes are intact and not split/collapsed..
 

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I was unaware there are two I replaced the boost control valve the sensor with three hoses connected to it on top. I'm getting the same p0033 code
 
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