You probably have a bad o2 sensor or you need a real bad tune up.  If you can
adjust the mixture as someone recommended, then you definitely have a bad
sensor.  I would definitely not replace the air flow meter or the injectors.
Find someone that knows what they are doing.  BTW, why do people call a
Vanagon Air Flow sensor a "Mass Air Flow Sensor"?  They are not the same
device.

Dennis

-----Original Message-----
From:   Vanagon mailing list  On Behalf Of TBill
Sent:   Tuesday, September 09, 1997 6:02 PM
To:     Vanagon@GERRY.SDSC.EDU
Subject:        Re: Emmissions help.

Jamie Smith wrote:
>
> Hi all,
>
> My '86 Westfalia has failed the CT emmisissions test (for high hydrocarbons
and
> CO), and the VW service station I took it to couldnt find an easy fix (short
of
> replacing the mass air flow sensor - or new fuel injectors - mucho $$$$$$).
>
Try turning the screw on the air flow meter until it runs rough.  Get it
inspected, then turn it back till it runs right.

> Anyway, they recommended I get some "Emmissions Cure", pour it into the gas
> tank, drive it for a while, and then take it right in to be tested.
>
> Does anyone have any experience or suggestions, ie - how far should I drive
the
> van, and do I need to run the stuff out + refill the tank before I get it
> tested.  Also - any other experience with possible reasons why I failed
> emmissions?

It didn't work for me.  Directions indicate you are supposed to add it
to a tank of gas, drive till almost gone, then test.  Made no difference
for me.

> TBill

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