Re: [86 8v, JH] engine start problems

[Oliver Seiler <oseiler@acm.org>]

On Mon, 14 Feb 2000, Randy B wrote:

> [...] 
> Sounds like the auxiliary air regulator if you have a JH motor, and
> you are running CIS injection.

I'm pretty sure the regulator is working okay, though I haven't been brave
enough to take it off (not much room in there, since I also have the
cruise control vacuum pump there). While the engine was running poorly
initially, I pinched the air line from the regulator to the intake
manifold and it reduced the idle speed even more, indicating air was
indeed getting through. And remember the idle *increased* after about ten
seconds, while I would expect the idle speed to decrease when the air
regulator closes (less air getting into the intake manifold).

The fact that the idle speed increased as if a switch had been thrown (not
gradual at all) made me think the thermo-time switch had turned off the
cold-start valve (as it should). If the cold-start valve wasn't working
properly, causing the engine to run badly, then perhaps when it turns off
the engine would run better...

Anyone know if a cold-start could fail this way?

Thanks for the quick response!
Oliver

Oliver Seiler -- Software Developer, Pivotal Software, http://www.pivotal.com
    Scirocco MkII Diary - http://erisian.com/~oseiler/scirocco/index.html


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