[urq] Ideas for rough running continued - Solved?

[Ingo Rautenberg]

Ah, but it all depends on whether the car is in gear, no?  If the tach drops
to zero and the car dies one can assume it's either fuel or ignition.  If
the tach drops to zero and the car is in gear, then definitely an electrical
problem.  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.

----- Original Message ----- 
From: "fdekat" <fdekat at sentex.net>
To: <urq at audifans.com>
Sent: Thursday, April 07, 2005 12:22 PM
Subject: [urq] Ideas for rough running continued - Solved?


>
> Some side notes to the subject line:
>
> > Diagrams help to explain this and the best source are the two documents
> > online "Audi Turbo Quattro Introductory.Service Training Information:
and
> > corresponding "Maintenance and Adjustments". These two documents will
> > explain things far better than one ever could in an email.  Perhaps
someone
> > has these links - I lost all my links in a hard drive crash and am
> presently
> > rebuilding them.
>
> Linked to at Martin's website:
>
> http://www.quattro.ca/Urq/urq-IST-Introduction.pdf
> http://www.quattro.ca/Urq/urq-IST-MaintAdj.pdf
>
> If you have a urq, you need to have the above documents!
>
>
>
> > The tach needle drops to zero as if the power to it went away.  When
> > power returns, it pops back to whatever rpm the engine is turning at
> > the moment.
> >
> > Ed
>
> To me, the tach dropping to zero would indicate an ignition problem, in
that
> the ignition is cutting out.  If ignition was OK, but it's a fueling
problem,
> the tach would be unaffected, other than following the slowing speed of
the
> motor (But NOT dropping to zero).  Don't get sidetracked by a good clue!
>
> As an aside, I'd always rather have an electrical problem to work on, than
> flaky CIS..
>
> =Frank de Kat=
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>


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