Here:




Solution: untighten the big hose clamp that holds the big 90° connector on top of the fuel distributor. Turn the connector a bit to the left (anti-clockwise) side. Make sure the plastic tube between the 90° thing and the air hose to the throttle body sits fine in both parts, tighten both hose clamps there and then tighten the big hose clamp on the fuel distributor.