Audi 100q 91 5-cylinder - Poor gas mileage

[Ti Kan]

Ralph Rocco writes:
> 165k mileage.  Getting ~14 mpg according to computer.
> What should be checked ?
> Weak pick-up/power in 1st gear ?

Could the computer be giving you a false reading?  Try filling up a tankful
of fuel, and reset your trip odometer at the same time.  Then, at the
next fillup, look at the amount of fuel you have to add.  The actual
mileage will be that amount divided by the number of miles indicated on
your trip odometer.

If your car is really acting like a gas guzzler and your driving situation
doesn't reflect that (i.e. you are not a leadfoot and not all the mileage
is in stop/go city traffic), then the first thing I'd check is the oxygen
sensor.  That is the number one cause of over-rich running conditions.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
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