You might even try completely taking the rod from the AT out of the
equation by disconnecting it to make sure it's not interfering with the
throttle operation.  (yes that e-clip will fly)  Then reattach it when
you've got that sorted out.  on my 86 w/ AT, I have a little intermittent
trouble with the idle switch not being activated when the throttle is
closed due to up and down play in the throttle shaft.  Your 1.9 has a
different set up with the switch but may be causing some of your problem.
Edward

On Tue, Dec 13, 2011 at 1:09 PM, David Beierl <dbeierl@attglobal.net> wrote:

> At 03:17 AM 12/13/2011, John Lauterbach wrote:
>
>> Loosened lock nut and moved adjusting screw in about five turns and
>> tightened the lock nut.  Engine RPMs more than enough to backoff on idle
>> adjust screw.  However, any side-to-side movement in throttle pushrod
>> causes engine idle to drop off.  Is this normal?
>>
>
> John, suggest you start by setting the end adjustment according to
> the spec in Bentley (and have a spare E-clip in case one goes flying
> - I believe Dennis H says 3/16 size from the hardware store will
> work).  Right now you've got the rod constantly holding the throttle
> slightly open.
>
> The adjusting range on the throttle screw is five or six turns
> IIRC.  You've got a nice tight throttle body now, so keep opening up
> that screw (and of course you know to set the basic idle and timing
> with the idle stab module bypassed).
>
> Yours,
> David
>