Oh, the other thing that was done with the "tune up" was that the mixture
was set properly.  Again, someone had tampered.

On Wed, Jul 17, 2019 at 1:08 PM Eric Caron <ericcaron96@comcast.net> wrote:

> Thanks folks for sharing your experiences.
>
> I think it is probably useless for me to change the fuel filter to solve
> this problem. Also, Dennis Haynes did major tune up just about 2,000 miles
> ago.
>
> Talking with a local shop that does some vanagon work he suggested I might
> want to check to see that the coolant temp sensor is working correctly.
>
> I’ll reach out to Dennis to see if he has any thoughts on that.  It was
> changed I believe but I remember some threads that said the quality of the
> part was uncertain.  It would be good to know from others if this part
> failing could cause this symptom.  Again it only happens in the first few
> minutes of running the van.  It hasn’t happened when it is warmed up.
>
> Eric Caron
> 85 GL Auto
>
>
>
> On Jul 17, 2019, at 1:48 PM, David McNeely <davmcneely40@gmail.com> wrote:
>
> When I first got my 1991 Volkswagen Vanagon GL Campmobile with original
> 2.1 engine, 135K miles at the time in 2009, it behaved exactly the same
> way, also putting us at risk when entering intersections or trying to merge
> onto a highway.  Proper plugs, distributor parts, timing (someone had
> tampered), fuel delivery -- standard proper tune up so to speak, and
> everything was good.  It was running rich before those things were taken
> care of.  That wasn't the only thing that had not been properly maintained
> about it, but that was what took care of the stalling problem.  It now has
> 185K miles, and by keeping everything proper, it has never exhibited those
> symptoms again.  I did put in a new fuel tank (later), and of course new
> fuel filter and fuel lines, but those things didn't cause the stalling.  In
> fact, the new fuel lines were before the other things, just because I was
> trying to take care of safety first.  The new tank was because someone had
> used the bracing for the tank as a lift point, mistaking them for frame
> members, and put a giant dent in the tank bottom.
>
>
> On Wed, Jul 17, 2019 at 8:52 AM Eric Caron <ericcaron96@comcast.net>
> wrote:
>
>> Hi John,
>>
>> Thank you for the info.  I may try warming up the bus more before going.
>> Usually it preforms best if we just start it and go.  I’ve noticed that if
>> I let it warm up and then go to drive away it would want to stay.  Not sure
>> if these are related problems.
>>
>> My bus has a new 2.1muffler and CAT and the oxygen sensor is a newer
>> version to match that set up.
>>
>> Still if just warming up the van solves this problem for now that would
>> be a good thing.
>>
>> Like your example it seems to happen if the van is just started, comes to
>> a sop and then is asked to excelerate.  Sadley this is right at a dangerous
>> busy intersection coming out of my home.
>>
>> Eric Caron
>> 85 GL Auto
>>
>>
>>
>> > On Jul 17, 2019, at 12:20 AM, John H. Lauterbach <
>> john@JHL.MGACOXMAIL.COM> wrote:
>> >
>> > Hello Eric.  This happened to me numerous times before and after I had
>> put a
>> > Boston Bob 1.9L in my van to replace the engine in it when I bought it
>> in 1997.
>> > Said problems would often happen in the mornings when I would drive a
>> few
>> > blocks, come to the stop sign at main road, and then accelerate.  Not
>> much
>> > sometimes.  Only thing I could tie it too was the O2 sensor was making
>> the
>> > mixture too rich until the engine was fully warm.  Dirt on the
>> connector between
>> > the FI cable and the FI microprocessor will also cause that along with
>> a bad
>> > connection between AFM and FI cable.  John
>> >
>> > On Tue, 2019-07-16 at 21:40 -0400, Eric Caron wrote:
>> >> Hi Folks,
>> >>
>> >> Wow! One thing after another, but I’m beating back the problems as
>> they arrive.
>> >>
>> >> This one is very important as potentially dangerous.
>> >>
>> >> I wrote about a one time  incident that happened on a wet day.  This
>> time the same thing happened on a very dry day.
>> >>
>> >> We came up to a intersection and all seemed fine.  We step on the gas
>> and the van doesn’t excellerate.  It just sort of idles and stumbles a
>> bit.  Then I here a couple of small backfire sounds.  Then after a bit the
>> van finds its legs and starts running again.  We basically kept the foot on
>> the gas during this time.  Scarey as traffic is coming at us.
>> >>
>> >> I’m going to change the fuel filters but not rally sure what else to
>> try.
>> >>
>> >> Fuel is non Ethanol high grade and I already ran sea foam this spring
>> and even a bit of stable blue, in the fuel.
>> >>
>> >> Tips and suggestions wanted!
>> >>
>> >> Eric Caron
>> >> 85 GL Auto
>>
>
>