Potentiometer adjusting possible?

[Marcus Oxer]

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My understanding is that it provides cold enrichment only - that's on CIS III.
It seems to be quite possible to live without it (mine is currently
disconnected) but you lose ECU idle control presumable because the circuit is
broken...
----- Original Message -----
From: Alan Pritchard
Date: Mon, 17 Feb 2003 14:58:02 -0000
To: "''Marcus Oxer''" , audi at humanspeakers.com, CTDiesel at aol.com
Subject: RE: Potentiometer adjusting possible?

I recall it says you need to swap out the whole assembly in the bently,
although it does give precise details on how to set it up. Therefore it must
be possible to replace it, I would like to know, because when I get the code
for the pot, my 90q becomes sluggish. And as yet I have not attempted to look
into it.  I must admit I haven't tried disconnecting it yet, what does the pot
actually do for us in the cis cars?

Best Regards,
Alan Pritchard
Network Administrator

Seaeye Marine Ltd.

Tel.  01329 289000
Fax. 01329 289001
www.seaeye.com

-----Original Message-----
From: Marcus Oxer [mailto:mdoxer at mail.com[1]]
Sent: Monday, February 17, 2003 2:45 PM
To: audi at humanspeakers.com; CTDiesel at aol.com
Cc: quattro at audifans.com
Subject: Re: Potentiometer adjusting possible?

This sounds very interesting. My KE3-jectronic system on my 1990 Coupe is
currently suffering from potentiometer woes. If I disconnect my potentiometer
all the driveability problems (lurching at light throttle openings) go away,
so I imagine (although I haven't yet had a chance to check) that the output
from my potentiometer is doing something similar to what Huw has seen. If it
*is* the case, Huw, is it simply a matter of changing the potentiometer?
Bentley seems to imply that the whole airflow meter needs to be changed which
sounds very expensive!

Marcus

'90 Coupe 2.3E 10v

----- Original Message -----
From: Huw Powell
Date: Sun, 16 Feb 2003 15:11:59 -0500
To: CTDiesel at aol.com
Subject: Re: Potentiometer adjusting possible?

>
> > Does anyone have a good way to adjust the potentiometer on a 874kq?  I am
> > pretty sure that is my cold acceleration problem now.  The screws that
hold
> > it to the fuel distributor body are filled with a sealer which looks like
> > original never touch since the manufacturer so i'm surprised i have to
adjust
> > it now.
>
> have you measured what it does?
>
> resistance from one end pin to the center pin, while slowly raising the
> air plate from rest to max height.  should smoothly go from 0 to 5 ohms
> or so, or vice versa, depending on whether you use pin 1 or 3 to measure
> from.  I have seen at least one bad one, with resistance irregularities
> and dropouts in the middle.
>
> --
> Huw Powell
>
> http://www.humanspeakers.com/audi[2]
>
> http://www.humanthoughts.org/[3]
>

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