Does anyone know how to properly adjust the screw that is on the intake manifold connection flange which leads to the auxiliary air valve? Does this go in conjunction with the bypass screw on the AFM?
I've failed to find mention of this in the Bentley or Haynes manuals. It's clearly adjustable with a pretty wide range and I assume affects the volume of air that goes through when idle.
The screw is in the side pointed at by the arrow.