Re: [tech] [non-scirocco]CIS-E problem

["Wm. Josiah Erikson" <josiah@gsinet.net>]

Thanks for the suggestion, but that isn't the problem - the car won't rev
unless I richen the mixture, it just bogs. Interesting new development: the
problem seems to disappear once the car is warmed up (takes about eight minutes
to go away). So what changes on a CIS-E system between when the car is cold and
when it is warm?
    TIA,
    -Josiah
    '83 Scirocco
    '84 GTi
    '86 Scirocco 8v
    '87 QSW
    http://www.gsinet.net/~josiah


scott hand wrote:

> On Tue, Sep 8, 1998 6:45 PM, Wm. Josiah Erikson <mailto:josiah@gsinet.net>
> wrote:
> >This is a problem I have with an '87 Fox. The fuel mixture seems to be
> >continually leaning itself out. Basically, what happens is that it will
> >run fine for a few days, and then one day it will start, but won't
> >accelerate (starving for fuel). Opening the hood and turning the fuel
> >mixture screw clockwise until it runs best fixes the problem, but only
> >for a few days. Could the mixture screw actually be vibrating itself
> >counterclockwise? Or could this be a computer problem? (I am unfamiliar
> >with the CIS-E system's differences from CIS). The oxy sensor is brand
> >new Bosch, if that matters.
> >    TIA!
> >    -Josiah
> >    '83 Scirocco
> >    '84 GTi
> >    '86 Scirocco 8v
> >    '87 QSW
> >    http://www.gsinet.net/~josiah
> >
>
> I just had a similar problem that turned out to be the idle air screw on
> the back of the throttle body. Try adjusting that instead of the mix. A
> bunch of people here told me that the o-ring on the screw wears out
> allowing it to slip. I replaced the whole screw and no more problem.
>
> scott
>
> '86 Scirocco 8v
>
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