At 08:53 PM 5/1/2009, Rob wrote:
>I was not aware that anyone actually ever pulled that cap. If the
>cat is not working properly wouldn't what's coming out of the
>tailpipe show that?

It's for setting the idle mixture, using the sealed-up bypass plug
mounted in the AFM.  24.51 et. seq. for the Digifant.

  --
David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
'89 Po' White Star "Scamp"