High idle after cleaning throttle body

Hello, why did you clean the throttle body in the first place? I would focus on the changes that occurred by doing that action alone. Throttle bodies typically do not require cleaning as they are coated in a way to prevent concerns. "None of the techs know what's wrong" - have they actually taken the time to inspect your vehicle? It doesn't sound like it; it's not some mysterious situation - it's a concern that with proper diagnostic testing and inspection with required diagnostic tools and equipment - will be resolved. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops