Re: '90 Coupe Quattro MPG

[John Cassidy/Sallyann Mulcahy <jcasidy@uswest.net>]

Once i verify the the computer hasn't lost it's mind, I'll look into checking
the O2 sensor.  Is there anyway to do that woth out fancy diagnostic equipment,
or do you just remove and replace and see if that helps?

Thanks,
John Cassidy

Wm. Josiah Erikson wrote:

> Oxy sensor would be my bet, but these cars aren't my area of expertise. Most
> cars, when the oxy sensor goes, they go into default full rich mode, and
> they usually run fine, and get terrible gas mileage.
>     -Josiah
>
> John Cassidy/Sallyann Mulcahy wrote:
>
> > Ok you fine folks that seem to know what you're talking about:
> > My beloved cq has just started getting terrible gas mileage - 13mpg by
> > the computer.  I've always enjoyed 19-22 mpg in city driving.  The car
> > seems otherwise to drive fine...power, start, idle, etc.  No black smoke
> > concernable. I've recently replaced fuel and air filters, as well as
> > plugs.
> > Where would you look first?
> > Thanks,
> > John Cassidy
> > ps.  the car has 98kmi.