I removed my throttle body today and gave it a good ol' clean.
But can anybody tell me what this pipe does?throttle.jpg
I ask because mine is completely blocked between the inner body and the metal tube (not the rubber tube itself). I know there is a tiny hole into the throttle but its seems blocked from that side too?
Car runs fine but I'm wondering if I need to be concerned?
I've looked everywhere but can find a simple diagram explaining what all the pipes are! (top are obviously coolant)