[urq] Ideas for rough running continued - Solved?

[fdekat]

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=