I'm not trying to be a smart ass, but here is a vid of a 98 Camry that used Seafoam. All that white smoke is carbon burning off the valves.
https://youtu.be/Ulsubnl6JQo
Carbon is not as bad in fuel injected cars as it was in carbureted, but it still happens, and hell GDI cars are KNOWN for carbon issues because of the way the fuel is injected.