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Your car has traction control and is currently in limp home mode. you will not be able to fix this yourself as most shops are unable to fix these issues. However the most common problem is the safety valve located on the firewall passenger side.
The APC valve regulates boost pressure (via the wastegate) to avoid over-pressurising the engine. It ensures that a safe boost pressure isn't exceeded. Don't run with it disconnected or you risk blowing the engine!
Problem areas can include: knock sensor on the engine block (also poor quality fuel, dirty engine causing knock); engine ECU.
You need to provide more information about when this happens:
hard accelerating? (likely poor quality fuel, dirty plugs/engine causing knock) and general driving similar.
idling? possibly a knock sensor or ECU related problem