what causes servic stabilitrak and no all wheel drive and engine light to come?

Hello, any number of things could be causing your problem. There could be more than one problem. The throttle position sensor could be a concern, but also your electronic throttle body itself could be a concern. What testing have you performed or are you capable of performing? You run the risk of throwing parts at a vehicle wastefully with no benefit. That can get expensive quickly. Nothing can replace the skill and knowledge of a technician with experience, proper equipment and tools, and workshop reference manuals. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops