Here is a partial list of things I have been told to help off Idle Bog in
no particular order

   1. Vacuum leak - I ended up redoing my entire system including cleaning
   TB, Plenum, Runners, S-Boot, Filter. (This did the most in correcting the
   issue)
   2. Injectors - look for good round spray pattern (haven't done this yet)
   3. Check the Throttle Cable is just on verge of tight or tension (this
   did quite a bit for me as well)
   4. All engine grounds re-soldered large grounds redone like transaxle,
   battery and large motor ground (this seemed to help idle, bog not too much)
   5. Upgraded alternator harness (smoothed idle out a bit more)
   6. Big one early in ownership of my van was to get the rear connections
   on my AFM rebuilt by a naval electro-engineer...made a big change in how it
   ran including off idle bog

Just some ideas to get started...Hope this helps!
Ryan

Ryan Perry

On Mon, Nov 3, 2014 at 9:37 AM, vw woody <vwwoody@hotmail.com> wrote:

> Last year I had similar issues. It turned out to be a bad fuel pressure
> regulator.
>   Jeff Woodall      woody"keep on pushin'"
>
>
>
> > Date: Mon, 3 Nov 2014 09:26:11 -0500
> > From: sartin@GMAIL.COM
> > Subject: Re: Still trying to diagnose an off idle stumble.
> > To: vanagon@GERRY.VANAGON.COM
> >
> > I did adjust the switches to Bentley standards. I also tested the switch
> > and it seems to work as required.
> >
> > I will be trying a new afm thanks to a list member (thanks!) but MAN this
> > is a frustrating problem!
> >
> > Thanks again all.
> >
> > Blake
> >
> > On Nov 3, 2014 1:40 AM, "Karl Wolz" <wolzphoto@q.com> wrote:
> > >
> > > I'd take a look at the throttle position switch adjustment. This is
> > critical for driveability.
> > >
> > > Karl Wolz
> > > Sent from my electronic umbilicus
> > >
> > > > On Nov 2, 2014, at 6:24 PM, Blake Sartin <sartin@GMAIL.COM> wrote:
> >
> > > > Vanagon off idle stumble: http://youtu.be/Eeo_vfue-q0
>
>