RE: [DML] High Idle

[JDub <doki_pen@xxxxxxxxx>]

So I did a little test today, I put a piece of
cardboard between the throttle body and the air
metering unit.  I hooked back up the idle speed motor
and the car idled perfect! Right on 775 RPMS.  So I
now know the problem is with air getting by the
butterflies in the throttle body.  Do you think it's
possible those spring loaded little thingys could be
defective?  I guess it could still be air slipping by
the edges of the butterflies.

Jon

--- John Hervey <john@xxxxxxxxxxxxxxxx> wrote:

> 
> 
> Dub, Is there any end play on the throttle body
> butterfly shaft. That may be
> part of it with the gap I'm seeing. They do wear out
> over time.
> John Hervey
> 
> 
> 
> -----Original Message-----
> From: JDub [mailto:doki_pen@xxxxxxxxx]
> Sent: Tuesday, January 18, 2005 6:47 PM
> To: dmcnews@xxxxxxxxxxxxxxx
> Subject: RE: [DML] High Idle
> 
> 
> 
> 
> Well the search for the high idle continues.  I
> suspect a vacuum leak is the cause.  I held the
> throttle body up to the sun and took some pictures.
> 
>
http://pg.photos.yahoo.com/ph/doki_pen/album?.dir=/2649&.src=ph&.tok=phZNFZC
> BjajZibpm
> 
> You can see some light through it but I don't know
> if
> it's enough to make a difference. What do you guys
> think?
> 
> Jon
> 
> 
> --- John Hervey <john@xxxxxxxxxxxxxxxx> wrote:
> 
> >
> >
> > Jon, I will jump in and ask: Is the idle speed
> > microswitch working properly.
> > If it's not adjusted so the top screw is engaging
> > and turning off the vacuum
> > solenoid before the bottom screw goes to the rest
> > position, or not working
> > at all the vacuum solenoid won't shut off the
> vacuum
> > to the ignition
> > distributor which advances the timing and will
> cause
> > the higher idle. Fuel
> > mixture and vacuum leaks along with Idle speed ECU
> > and sensor could but not
> > likely. You could have a bad vacuum line somewhere
> > else.
> > John Hervey
> > www.specialTauto.com
> >
> >
> >
> >
> > -----Original Message-----
> > From: JDub [mailto:doki_pen@xxxxxxxxx]
> > Sent: Monday, January 17, 2005 8:05 PM
> > To: DML
> > Subject: [DML] High Idle
> >
> >
> >
> >
> > I'm trying to tackle a problem I've had with my
> > delorean for a long time.  The idle is excessivly
> > high, about 1500 RPMS.  I was thinking maybe the
> > timing is off, could this cause it?  If so, do I
> > adjust it by turning the distributor? Looks
> awfully
> > tough to get to.
> >
> > Jon
> >
> >
> >
> >
> >
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> 
> 
> 
> 
> 
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> 
> 






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