Re: Setting the idle on a 100q

[Andrew Duane USG/PE <duane@zk3.dec.com>]

Hairy green toads from Mars made William J Murin say:

> My mechanic just got done mucking about with the CO settings on my 100q.
> Seems to have alleviated--but not totally solved--the acceleration stumble
> when cold problem.
> 
> However, the idle seems to have dropped 50 to 75 rpms as a result of
> adjusting the CO settings.
> 
> Looked in his Mitchell's guide and it says that the idle speed is
> electronically adjustable.  Apparently no way to turn a screw & boost the
> idle a bit.
> 
> True?  Or is there a way to adjust the idle?

I seem to recall that this is true. The idle can't really
be set directly. I will se what Mr Bentley has to say about this.

On the subject, I want to pull the ISV out of my '89 100Q, and
possibly the long hose underneath that goes toward the back of
the engine compartment. They need to be cleaned and checked for
leaks.  Any BTDT's?

I assume that unplugging the ISV on this car should make the idle
stumble and possibly die. Doing it on mine has no effect on the
crappy idle, or on the low RPM stumble.

I'm going to clean and diagnose everything there: ISV, idle
switch, vaccuum lines, etc.

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Compaq Computer Corporation		(603)-884-1294
110 Spit Brook Road
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too psychotic to express it