Question

2005 Saab 9-3 2.0L with engine code P0033. What part is needed to fix this engine light code? I get no turbo boost and runs sluggish and the MPG is lower now than before

Answer 1

the air bypass valve should be checked

you can also try to clean the map sensor and mass air flow sensor with mass air flow sensor cleaner 

 

 

map sensor in pic below