Why does my throttle body click with the engine off?
As the title states, I noticed while doing some engine work that my throttle body would periodically start clicking (every 10 minutes or so, lasting a minute, something like that). I had the key set to acc so I could listen to music, and it didn't do it after I turned the key off. Also stopped if I unplugged the top left plug on the throttle body. Not really a problem that I know of, but curiosity is killing me. Why does it do that?