this is an old thread.. but w.e lol. I think that your car is in "fail safe mode" Reasons for this could be bad afm, loose,dirty afm connector, boost leak or intake leak. fail safe mode is when ur ecu senses somethings wrong and limits the car to about 3k rpm.... for example an intake leak... unmetered air coming in.. ecu senses somethings up... and puts it in the mode so that you can still drive it to a mechanic without blowing up ur engine.
i suggest pulling codes
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