[200q20v] RE: MPG
brett at brettd.dsl.speakeasy.net
Wed May 16 11:26:44 EDT 2001
On Wed, 16 May 2001, Paul R Luevano wrote:
> > Hi all, I have noticed many posts with greatly varying mpg's. My 91 Avant
> > with 106k miles, Lehman chip, K&N, new TBV and Oxygen sensor will not exceed
> > 24mpg highway, and 17 mpg in town. Car runs strong and smooth at all rpm's.
> > I would like better mileage, considering that I drive 30k per year, any
> > suggestions?
> What he said. My car has the same mods, and I am getting the same mileage.
Yup. And you're upset? Our cars were rated from the factory at 18/22.
If you're getting 17/24, and your car is making +60 more HP, who can
complain? :-) 17/24 is almost exactly what I get(actually, I get a little
more, probably 17.7...I usually squeek just under the EPA city guide.)
> time I replaced a component, I expected a chance, but the mileage has stayed
> rock solid. I also have a full Stebro exhaust (including cats).
Yup. The Motronic does a nice job of adjusting for things like O2
sensors; if you look at the variables the ECU uses, you can tell why.
There's something like 4 different adaptive values for the O2 sensor alone
> On another note, my H2O temp gauge is non-op. Is there an order of sensors to
> check? Like to have a temp gauge, now that summer is here, and I do tow.
Multifunction temp sensor...I can almost guarantee that's the problem. If
memory serves, it's about $50-ish. $67 keeps popping into my brain for
Bently details how to hook up a resistor to the circuit at the connector
end to make sure the power supply, gauge and wiring are all OK.
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