Vacumn lines, temp sensors.

I had the black smoke rough idle problem. Found the hose on top of the
engine between the crankcase vent and the AFM on the ol' 2.1L WBX  was
rotten and had a hole in the underside where it couldn't be seen.
Replaced the hose and the roughness and black smoke problem disappeared.

John Rodgers
88 GL Driver

Mark Seifert wrote:

> Ok, so my vanagon is running rich, and I was outside fooling with it
> today
> to see if I could figure it out. In the mornings, when I start it up,
> there
> is a brief puff of BLACK smoke, and the engine won't idle. I have to
> keep my
> foot on the pedal to keep it alive. After a few minutes, it seems to run
> pretty normal. But, my plugs have kind of a lot of cabon build-up, and my
> gas mileage is not so great. I'm pretty sure the motor is running
> rich, and
> that this cold-start problem is related somehow. I adjusted the airflow
> meter, checked the o2 sensor, blah, blah, blah...Can't figure it out.
>
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