[s-cars] Mystery Miss

[Mark Strangways]

Switch 2 injectors and see if it moves.
It may be some crap in the injector, and it's not getting the same amount of
fuel for warm-up.
Failing that maybe a compression test or leakdown to verify that the
cylinder doesn't have any upcoming issues.

Mark
----- Original Message ----- 
From: "Robert Myers" <robert at s-cars.org>
To: <s-car-list at audifans.com>
Sent: Wednesday, September 29, 2004 9:34 PM
Subject: [s-cars] Mystery Miss


>
> Hi Y'all,
>
> Thanks to all who responded about my son's dealings with his Mercyless
Benz
> stealer.  Apparently contacting the corporate offices helped.  He finally
> has his car back from the stealer.  Now on to the topic of this post.
>
> My '95 urS6 (RS2ed) has developed a mystery miss.
>
> It happens only when the engine is stone cold.  It disappears after the
> engine has run for less than two minutes and does not come back until the
> next time the engine is stone cold.
>
> FWIW, I have localized the miss to cylinder #4.
>
> I have pretty much ruled out a fault with the PSO since the miss
disappears
> after the engine has warmed up a bit.
>
> I don't think it is a problem with a weak coil because there is absolutely
> no miss at high boost which is when a weak coil would show up.
>
> I put new plugs in about a week ago so that shouldn't be the
> problem.  Performance is superb after the engine warms up.
>
> Plug boots are reasonably fresh.
>
> The wires to/from the coils have been freshly reinsulated with shrink
> wrap.  I am pretty confident that I did this job correctly.
>
> What in the name of the Audi gods remains?  Any ideas?
>
>
> Bob
> Random Bushism: "A tax cut is really one of the anecdotes to coming out of
> an economic illness." George W. Bush, on The Edge With Paula Zahn, Sept.
> 18, 2000
> _____
> Robert Myers   304-574-2372
> Fayetteville, WV
> '95 urS6  Cashmere Grey
> _____
>


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