[DML] Re: Not passing emissions
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[DML] Re: Not passing emissions

See how much play there is in the "quadrant link". That is the rod
that connects the throttle spool to the throttle arm. Too much play
and the engine doesn't return to idle reliably. It has a left-hand
ri8ght-hand thread for fine adjustment like a turnbuckle. If it is
very worn you will have to replace it. You might have to lubricate the
throttle cable as per the recall and the throttle spool may also need
to be disassembled, cleaned, lubricated, and reassembled. Be careful
touching those little screws on the throttle arm. You can mess up the
switch if you hit it too hard with the screw.
David Teitelbaum
vin 10757

--- In dmcnews@xxxxxxxxxxxxxxx, "M. P. Olans" <mpolans@...> wrote:
> So far I passed all of that,
>      However, I have a high idle situation that I didn't think was
> relevant and now, well, I am grasping at straws.  If I push the switch
> with a screw driver it will return to below 800, but when I let off it
> rises to about 1150.  I've tried adjusting the screw on the arm
> attached by a shaft to the throttle spool that pushes that switch but
> it just does not see to go far enough to actuate the switch.  There is
> a small amount of play on that arm, too.  Could the switch be bad and
> too hard for the screw to push?  Is something out of adjustment?
> Thanks,
> Matt
> VIN 16816 
> --- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@> wrote:
> >
> > Make sure the timing is set right, and the vacuum advance is hooked up
> > correctly and working. On the Island setup there is no mechanical
> > advance. Check for vacuum leaks. You may have to adjust the mixture
> > but do not do it to compensate for vacuum leaks. They have to be fixed
> > first. Pull the output pipes from the turbos to the intake manifold
> > and if the insides are oily you have to have the leaky turbo rebuilt.
> > You may need to replace the silicone hoses and clamps on the Island
> > turbo plumbing. They MUST not leak. Check the control hoses too. Any
> > leaks will allow you to overboost. Pull the oil fill and you should
> > not see any pressure coming out. You can hold a piece of paper over
> > the opening to determine if air is coming out of the crankcase. You
> > should be running synthetic oil on a turbo car.
> > David Teitelbaum
> > vin 10757
> > 
> > 
> > --- In dmcnews@xxxxxxxxxxxxxxx, "M. P. Olans" <mpolans@> wrote:
> > >
> > > OK,
> > >      This is frustrating.  Two years ago I had to do a full
tune-up to
> > > pass emissions.  This year, same thing.  However, even after the
> > > tuneup, my CO is still too high.  NOx and HC's are really low so I
> > > know the O2 sensor and cats are doing their job.  However, I am at a
> > > loss here.  I did plugs, wires, cap, and rotor.  Gapped them to .025
> > > since the manual said .024-.028 IIRC.  Car runs great and has power
> > > just like before.  It is an Island Twin Turbo.  So, any hints?  I'm
> > > running about 25g/mile CO and the limit is 20.  When I got it
from Rob
> > > it tested at 11 g/mile, and then after the first tune-up it was also
> > > 11 g/mile.  What am I missing?  I cleaned my K&N air filter last
> > > month.  I haven't changed my fuel filter in probably 4 years,
but how
> > > could that affect emissions?
> > > 
> > > What am I missing?
> > > 
> > > Thanks,
> > > Matt
> > > The Arizona DeLorean Club
> > > www.az-d.org
> > >
> >

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