For sure. Yes. Many suggestions on what to do and check.

Apologies if already answered but.... after 24 hours with a cold
engine, when engine starts, if you shut if off right away is it
consistently hard to start again or consistently easy (normal) to
start it again?

I"m not suggesting parts in this system are at fault but temporarily
"deleting" the idle control system is easy to do and would eliminate
the idle control computer, idle control valve, and to some extent,
portions of wiring harness to/from these parts as a possibly cause of
issue. I did this on my '88. I disconnected the idle control computer,
(in front of pass. side tail light), blocked outlet from intake
snorkel to ISV and inlet at hose to ISV. All hoses concerned are in
good condition. e.g. no vacuum leaks. Especially at smaller "Y" type
hose between ICV and intake plenum.

Neil.

On 11/6/16, Dan N <dn92610@gmail.com> wrote:
> thanks Neil...
>
> the thing is I want to know what's/where the problem ...
> if I clean/fix everything on my list I never know... if I clean/fix one
> item at a time I have to wait till the next morning to do the next
> clean/fix... because once the engine started for a test the problem won't
> come again until another 24 hours..
>
> aaargghh.. :-)
>

--
Neil n

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