[urq] Ideas for rough running continued - Solved?

Sat Apr 9 12:32:07 EDT 2005

I agree.  When I was playing with the cutout by opening and closing
the throttle, if I held the switch closed, it would rev noticeable
less eagerly.

I verified 0 ohms when the switch is closed.

Time to remove the igloo.

Ed

----- Original Message ----- 
From: "Ingo Rautenberg" <i.rautenberg at waratap.com>
To: "Ed Kellock" <ekellock at gmail.com>; "UrqList" <urq at audifans.com>
Sent: Saturday, April 09, 2005 10:08 AM
Subject: Re: [urq] Ideas for rough running continued - Solved?

> Ed,
>
> According to IST Maint and Adj. Manual, with Throttle closed Ohmeter
should
> read 0  ohms and open more than 2-4 degrees infinity.  Component
failure
> would prevent cold timing advance below -3 degrees C and incorrect
timing
> during vacuum test and fuel pump shutoff at 4k during boost test.
>
> Sounds to me like you've got another problem here.
>
> Ingo
> ----- Original Message ----- 
> From: "Ed Kellock" <ekellock at gmail.com>
> To: "Ingo Rautenberg" <i.rautenberg at waratap.com>; "UrqList"
> <urq at audifans.com>
> Sent: Saturday, April 09, 2005 11:52 AM
> Subject: Re: [urq] Ideas for rough running continued - Solved?
>
>
> > Thanks Ingo and Frank.  My tach definitely drops to zero due to no
> > signal.  I believe that means ignition and it seems the email
below
> > confirms this from both of your perspectives also.
> >
> > Following up on Ben's note about the idle switch: mine does click
when
> > the throttle is closed.  I will check resistance on it shortly.
> > Should it be adjusted so it clicks ~just~ as the throttle is fully
on
> > its stop or shortly before?
> >
> > I'm also going to pull the igloo and check for binding of the
metering
> > plate.
> >
> > Thanks!
> > Ed
> >
> > ----- Original Message ----- 
> > From: "Ingo Rautenberg" <i.rautenberg at waratap.com>
> > To: "UrqList" <urq at audifans.com>
> > Sent: Saturday, April 09, 2005 9:33 AM
> > Subject: Re: [urq] Ideas for rough running continued - Solved?
> >
> >
> > > For Ed,
> > >
> > > Frank de Kat sent me this:
> > >
> > > ----- Original Message ----- 
> > > From: "Frank de Kat" <fdekat at sentex.net>
> > > To: "Ingo Rautenberg" <i.rautenberg at waratap.com>
> > > Sent: Thursday, April 07, 2005 6:32 PM
> > > Subject: Re: [urq] Ideas for rough running continued - Solved?
> > >
> > >
> > > > Hello Ingo:
> > > >
> > > > At 04:35 PM 4/7/05, you wrote:
> > > >
> > > > >Ah, but it all depends on whether the car is in gear, no?
> > > >
> > > >
> > > > I beg to disagree (But I  think I see what you are getting
at!)
> > > >
> > > > >If the tach drops
> > > > >to zero and the car dies one can assume it's either fuel or
> > ignition.
> > > >
> > > > Noo... Tach will only go "all the way to zero" if there's an
> > electrical
> > > > problem.
> > > >
> > > > But I may see the crux of your logic:  IF the motor is already
> > going very
> > > > slow (idle), and the fuel cuts out, the tach will get pretty
close
> > to
> > > zero,
> > > > and still be doing it's job (As the motor IS truly going
pretty
> > slow!) and
> > > > be hard to tell it it's AT zero, or NEAR zero..
> > > >
> > > > So.. Perhaps to help:
> > > >
> > > > In my experience, if it's an  electrical problem and ign cuts
out,
> > the
> > > tach
> > > > will go RIGHT to zero, and perhaps violently bounce back to
> > indicated revs
> > > > when the ignition returns. Maybe a good backfire too, as the
> > ignition come
> > > > back on. (In my case, it was a VERY good backfire!)
> > > >
> > > > I'd think if it was a fueling problem, the tach MAY get close
to
> > zero, and
> > > > only rise in revs again when the motor catches again.
> > > >
> > > > It would really help to absolutely verify where the
fundamental
> > problem
> > > is.
> > > >
> > > > Perhaps attach a timing light to see if spark is going away
when
> > it dies,
> > > > vs. fuel?
> > > >
> > > >
> > > > >  If
> > > > >the tach drops to zero and the car is in gear, then
definitely an
> > > electrical
> > > > >problem.
> > > >
> > > > Agreed.
> > > >
> > > > >   I'm sorry if I didn't make that clear.  My problem would
be it
> > > > >would run like crap (stalling), I'd depress the clutch and
engine
> > would
> > > die.
> > > >
> > > >  From whatever the problem was/is, I's assume.
> > > >
> > > > No matter how you slice it though, running a urq is never
> > boring...
> > > >
> > > > Good luck!
> > > >
> > > >
> > > > Frank de Kat
> > > > fdekat at sentex.net
> > > > Dundas, Ontario, Canada
> > > >
> > > > http://www.sentex.net/~fdekat
> > > > (To see the "Rally Pictures")
> > > >
> > > >
> > >
> > >
> > > ---
> > > Outgoing mail is certified Virus Free.
> > > Checked by AVG anti-virus system (http://www.grisoft.com).
> > > Version: 6.0.857 / Virus Database: 584 - Release Date: 2/10/2005
> > >
> > > _______________________________________________
> > > Audifans urq mailing list
> > > Send posts to: mailto:urq at audifans.com
> > > Manage your list connection:
> > http://www.audifans.com/mailman/listinfo/urq
> > > Have an urq question?  Check the Audifans Knowledgebase!
> > > http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/UrQuattro
> > > Have an urq answer? ... Please help others by adding to the KB
...
> > all contributions welcome!
> >
> >
>
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.857 / Virus Database: 584 - Release Date: 2/10/2005
>