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RE: [T3]


On 11 Dec 98, at 8:44, James MacNaughton wrote:

> But, I'm back to surging.  I adjusted the idle cutoff at the throttle body
> intake, and it seemed to work until I made the above adjustments.  Question:
> I turned the indicator one additional hash mark counter-clockwise (left, or
> further closed) after I heard the butterfly click (which is something of a
> misnomer, as it didn't really 'click' as I would represent it, but hey, I'm
> new to FI).  I'm tempted to try it the other way; hear the click, and turn
> it one hash mark clockwise, or more open.  Which way is right?  Muir's books
> have been known to have typos, and mine is a *very* old book (like 74).
> I've misplaced my damned Bentley manual.

The loping idle means that the idle speed iìºSzgh.  It is the 
FI's correct response to that problem.  You need to figure out why 
your idle is too high and correct it.  

Ignition timing affects idle speed.  Intake vacuum leaks cause 
increased idle speed.  Improperly adjusted Throttle Valve Switches 
can cause high idle speed.

The TVS on 68-9 are adjusted by click.  Late versions of the 70-71 
and 72-3 switches are adjusted by turning the switch just until you 
feel the switch just come up against, but not past, an internal stop. 
Early versions of the 70-1 and 72-3 switches must be adjusted with an 
Ohmmeter or one of the Bosch FI testers.

Jim
-
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************

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