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Re: Cold Start Problems
While diagnosing a starting problem myself, I stuck a small 12V lamp in the
CSV circuit, right by the valve. Lets you know if/when it's getting power.
Pop the hood, turn the key, watch for the light.
It started ok before because it was so darn rich, the CSV wasn't needed.
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>I diagnosed my low end power problems on my "new" 86 4KCSQ to be bad idle
>mixture setting. The car was idling at ~1400 RPM and was accelerating like
>was set_way_too_rich. I leaned up the mixture and the car runs soooo much
>better. Idles at ~ 950 - 1000 RPM and power is back. Driving around town is
>much smoother and I became happier than a pig in S%^&.
>Well, now for the problem. Started the car this morning (fairly cold but
>freezing) - or should I say tried to start the car. Took probably 20
>then a go. What happened was car turned over, ran for half a second and
>Repeatedly. Acted as if it were gas starved. Finally, it started and held,
>with the gas pedal depressed a bit, and ran all the way to work like a
>Think it is the cold start valve!?
>Questions: What to check?
> I am running a can of Techron currently. How does this
>the equation? Does it have anything to do with the pinging I have noticed
>since my adjustment, or is this just a timing issue. Don't think it's the
> After checking, what to repair/replace re: cold start
>That's about it. Thanks guys for educating me to this point. Now how bout
>getting me to the next level.
>With great appreciation to this list,