One result of my engine (grease) fire was the AFM cover melted down into
the wiper box. I replaced it with a salvaged AFM. This unit was missing the
plug over the idle air bypass screw. Mr Bentley sez 'factory adjusted-do
not touch'.

The engine runs well but the idle feels a bit less even than before. Ken
L's O2 gizmo seems to be a bit lazier than with  my original AFM but  the
stock 2.1 still gets ~20 mpg.

I think I found the Samba post Neil refers to but it was loaded with
disclaimers. I'd like to replicate the factory procedure.

Is the best way to verify this adjustment to find someone with a NOx
sniffer?  If so, where do I find the number for NOx at idle?

Thanks once again :-)

'91 Vanagon MV Phoenix
Northern Michigan

Vanagon Rescue Squad
www.vanagonauts.com

On Sat, Jun 16, 2012 at 1:58 PM, Dennis Haynes <d23haynes57@hotmail.com>wrote:
<snip>
>
> Back to you question, the idle air bypass turn counter clockwise to lean.
> For the spring tighten to lean.
>
> Dennis
>
 </snip