Need Vag-Com

[Mike Sylvester]

Probably due to weak spark.
Bad coil, plugs or wires.
The spark plug gap becomes high resistance under boost and will cause a
misfire if the spark is weak.

Mike

www.urq20v.com

> -------- Original Message --------
> Subject: Re: Need Vag-Com
> From: "Mike Miller" <mikemilr at blackfoot.net>
> Date: Wed, August 25, 2010 8:42 am
> To: "gbs" <gschesel at comcast.net>, "'David Sexton'"
> <sextondm at gmail.com>, <200q20v at audifans.com>
> 
> 
> I've been chasing a miss under  boost in the higher gears for a while.  Perhaps miss is not the correct term - Bad stumble or bucking. Don't see it in 1st -3rd, appears in 4th and is pretty bad in 5th. Anything over about 1.4 bar will cause it. I also see max boost at about 1/4 throttle. There is practically no difference in performance the last 3/4ths of throttle travel. Seems to be a little better when the engine is cold and in colder temps. Car will pull redline in 3rd.
> 
> Thoughts?
> 
> mike
> 
> ----- Original Message ----- 
> From: gbs 
> To: 'David Sexton' ; 200q20v at audifans.com 
> Sent: Wednesday, August 25, 2010 6:04 AM
> Subject: RE: Need Vag-Com
> 
> 
> My 200 also, still has the misfire I wrote about back in early July with
> subject "plastic distributor gear".  My mechanic had to give up trying to
> figure out why.  The distributor and engine speed sensor were replaced but
> problem continues. So it is back in my garage; I have a weeks vacation
> coming up to monkey with it.
> Everything is fine until RPMs reach 3000; then misfire.  No codes.  Can the
> VAG-Com detect other issues besides codes?  Like the symptoms of the
> misfire.
> 
> BTW, I just bought a new VAG-Com for just over $400 for my own use on my 3
> Audis.  Plus my daughter has a 10 year old VW Passat, so I hope to put it to
> good use.
> 
> Just wondering.
> Gordy in St Paul 
> > -----Original Message-----
> > From: 200q20v-bounces at audifans.com [mailto:200q20v-bounces at audifans.com]
> > On Behalf Of David Sexton
> > Sent: Wednesday, August 25, 2010 12:36 AM
> > To: 200q20v at audifans.com
> > Subject: Need Vag-Com
> > 
> > Hello all;
> > Still trying to diagnose a bad miss on my 1991 200 20v.
> > Does anyone have Vag-Com that they want to part with?  If so, shoot me an
> > offer and I'll see if I can afford it!
> > Thanks a lot,
> > 
> > Dave Sexton
> > _______________________________________________
> > 200q20v mailing list http://www.audifans.com/mailman/listinfo/200q20v
> 
> 
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