Throttle body cleaning.
Surprisingly, the wood floors did not fix the weird idle/stalling problems that I’ve been having. After plenty of research, recommending all sorts of things to look for and fix, my dad suggested that the throttle body may need some cleaning. Being a backyard mechanic, this task seemed more daunting than it actually was. The hardest part was putting everything back in place. The idling seems to be right on track. For now.