Re: computer MPG adjustment

[pjrose@servtech.com (Phil & Judy Rose)]

>Date: Sat, 15 Nov 1997 07:18:07 -0500 (EST)
>From: TeutonicGT@aol.com
>Subject: Re: computer MPG adjustment
>
>Hi listers,
>     Just throwing a thought out here without any real investigation into the
>thread - so forgive me if I'm way off....Could your fuel metering
>distributers need cleaning? My MPG readings were down around 50% 'most' of
>the time, but after some fuel injection cleaner was applied liberally to the
>underside of the fuel distriibuter, accuracy was restored. HTH.
>
>Allan Jones
>'86 Audi Coupe GT Commemorative Edition

This thread is to address the question of _instrument panel_ adjustment of
MPG output. All I had originally posted was the simple fact (heh, heh) that
when the MPG adjustment in the instrument panel is done (+15% to -15%
range), one needs to keep in mind that what this does is to change the
"fuel consumption factor" (up or down) and therefore has the _inverse_
effect on the MPG readout. If MPG reads too low, then decrease the FCF (and
vice versa).

If a computer has a reading that's off by much more than +/_ 15%, then
maybe mechanical factors ought to be addressed (_if_ one's engine has fuel
metering distributors).