[urq] Ideas for rough running continued - Solved!

[qshipq at aol.com]

 I reminded Ingo during my phone diagnostics many times in the last 2 weeks, it's only sheet metal.   Spark and fuel...  Now maybe I can retrieve all my shipped tools and 'known goods' back to my urq parts warehouse.
 
SJ
 
 
 
-----Original Message-----
From: Brandon Rogers <brogers at terrix.com>
To: Ingo Rautenberg <i.rautenberg at waratap.com>; UrqList <urq at audifans.com>
Sent: Mon, 28 Mar 2005 08:58:14 -0700
Subject: Re: [urq] Ideas for rough running continued - Solved!


Fascinating! 
 
I must say I am very relieved for you Ingo. Glad you found the culprit and can now get back to enjoying the car. 
 
Brandon 
 
----- Original Message ----- From: "Ingo Rautenberg" <irautenberg at comcast.net> 
To: "UrqList" <urq at audifans.com> 
Sent: Saturday, March 26, 2005 4:02 PM 
Subject: Re: [urq] Ideas for rough running continued - Solved! 
 
> It was the Airflow meter. Now I need to have my exhaust reattached 
> (currently held together with baling wire). Really quite remarkable. > After 
> replacing almost every conceivable possible problematic piece (save entire 
> engine or turbocharger) with known good, I decided to look at the airflow 
> metering plate again, which I initially thought was binding, and compared > it 
> with another that I had just recently bought. What I discovered was that > it 
> was not sticking against the venturi wall, but rather that the pin that 
> rests on the leaf spring had actually worn a hole in it! On decel, it > would 
> essentially stick, the pin lodging itself into the hole, choking off air > and 
> fuel. It would not restart unless I turned the CO screw to richen the 
> mixture, which would apparently plop the plate up again. Some pics: