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