RE: A miss?

[arnberg@NCSMSG01ES.ntc.nokia.com (Arnberg Tommy NTC/MSG-Es)]

Hi !

Try to  open WOT   actuator and check   if there
the  copper contact points have corroded  for  WOT position


rgs.
tommy
 ----------
From: phil
To: quattro
Subject: A miss?
Date: 5. Januaryta 1997 23:59

In message <Pine.SUN.3.91.970105135948.13912A-100000@indy4> Mann Law writes:

>  When accelerating [usually comes in between 2,500 & 3,800rpm] the
> car feels like it is stuttering.  Akin to a miss, but when you back off
> the gas it feels almost normal.  Hard to describe.  Feels almost like it
> is running too rich in that area. Only shows up when the car is moving,
> not in neutral.  I'm baffled.  Help?

I'm chasing the same symptoms in an ur-quattro (1988 MB engine, two knock
sensors,  MAC12).  I've eliminated compression, plugs, plug wires,
distributor
cap and rotor, and the coil.

I suspect either the metering head or the wiring harness between the WOT
switch

and the ECU.  I've dialed in a bit more mixture, and that improved it
slightly,

so I'm leaning towards a dirty/clogged metering head.

What mileage do you have?  Mine is 134.5k.

 --
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club

 ------ Message Header Follows ------
Received: from TNE02.TELE.NOKIA.FI by ntcit-mmta7.ntc.nokia.com
  (PostalUnion/SMTP(tm) v2.1.9c for Windows NT(tm))
  id AA-1997Jan05.235255.1604.618472; Sun, 05 Jan 1997 23:52:55 +0200
Resent-Date: Sun, 5 Jan 1997 23:52:21 GMT
Resent-From: ARNBERG@ntcclu.ntc.nokia.com
Resent-To:   arnberg@NCSMSG01ES.ntc.nokia.com
Received: from axl01it.ntc.nokia.com by TNE01.TELE.NOKIA.FI with SMTP;
          Sun, 5 Jan 1997 23:52:42 +0200 (EET)
Received: from coimbra.ans.net (coimbra.ans.net [147.225.1.100]) by
axl01it.ntc.nokia.com (8.6.9/8.6.9) with ESMTP id AAA21767 for
<tommy.arnberg@ntc.nokia.com>; Mon, 6 Jan 1997 00:51:56 +0300
Received: (from majordom@localhost) by coimbra.ans.net (8.8.2/8.7.3) id
PAA27953 for quattro-outgoing; Sun, 5 Jan 1997 15:52:31 -0500 (EST)
Date: Sun, 05 Jan 1997 20:44:30 GMT
From: quk@sievers.com (Phil Payne)
Reply-To: phil@sievers.com
Message-Id: <113578@sievers.com>
To: quattro@coimbra.ans.net
Subject: A miss?
X-Reply-To: quattro@coimbra.ans.net
X-no-index: yes
X-Mailer: PCElm 1.10
Lines: 22
Sender: owner-quattro@coimbra.ans.net
Precedence: bulk