RE: What's MFA ? was: [NEW SITE][16v] ROAD TESTS, ETC...

[Chris Coracini <Coracin@usdl.com>]

in most cars, the MPG measurement is actually manifold vacuum related.
am i right on this?  (i think so).  perhaps you have a vacuum leak?

chris
86 16V scirocco

>----------
>From: 	Ewan Marshall - Frans Maas Linlithgow[SMTP:Ewan.Marshall@UK.Sun.COM]
>Sent: 	Friday, December 11, 1998 12:16 PM
>To: 	scirocco-l@scirocco.org
>Subject: 	RE: What's MFA ? was: [NEW SITE][16v] ROAD TESTS, ETC...
>
>My average MPG is always at 99.9 (except when I first start the car it reads
>0 then quickly counts up to, and stays at 99.9).
>Does anyone know why this may happen?
>
>Cheers,
>
>	Ewen.
>	
>
>	From: "Neal Tovsen" <ntovsen@piper.hamline.edu>
>	To: <TschuessVW@aol.com>, "Scirocco-L (E-mail)" 
><scirocco-l@scirocco.org>
>	Subject: RE: What's MFA ? was: [NEW SITE][16v] ROAD TESTS, ETC...
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>	Wow! Thanks for the detailed description! That would be pretty cool. I
>	imagine that retro-fitting it probably requires a bunch of sensors in 
>the
>	engine bay in addition to the dash/steering column changes. Perhaps not 
>the
>	best of fun.
>	
>	Neal
>	
>	-----Original Message-----
>	From: TschuessVW@aol.com [mailto:TschuessVW@aol.com]
>	Sent: Thursday, December 10, 1998 10:06 PM
>	To: ntovsen@piper.hamline.edu
>	Subject: Re: What's MFA ? was: [NEW SITE][16v] ROAD TESTS, ETC...
>	
>	
>	In a message dated 12/10/98 5:17:25 PM Mountain Standard Time,
>	ntovsen@piper.hamline.edu writes:
>	
>	<< So, what does it tell you? >>
>	
>	It has 7 different displays.  The clock as you see on yours, then the 
>first
>	click brings you to elapsed time, second click is elapsed miles, third 
>click
>	is (damn can't remember), fourth click is miles per gallon, fourth click 
>is
>	oil temperature and the sixth click is outside air temperature.  On the
>	wiper
>	stalk, there is a switch with a 1 and 2 on it and a button at the end.  
>The
>	button selects the function and the 1/2 enables to go to a second set of
>	memory of the same functions.  Of course oil temp, time and outside air 
>will
>	show the same number, but the elapsed time, miles and mpg will be 
>different
>	when hitting the switch.  The 1/2 switch slides to the left for number 1 
>and
>	to the right for number 2.  When slid and held for couple seconds, the 
>MFA
>	will reset for that number and the other set will remain the same.  So 
>if
>	you
>	were going on a long trip and wanted to see how much mpg you got during 
>the
>	trip, you could reset number 2 and just leave it alone.  At the end of 
>your
>	trip just slide the switch over to number 2 and it will give the average
>	numbers all the way back to when you reset it last. You could use number 
>1
>	for
>	checking values at any given moment.  It's interesting to see what kind 
>of
>	mpg
>	the car is getting at certain moments.  Like going down a hill, coasting 
>in
>	neutral, slide the switch over and hold, release it and it will read 
>99.9
>	mpg.
>	:-)
>	
>	Unfortunately, I don't have an MFA in the Scirocco, but the GTI VR6 has 
>it.
>	I
>	use it quite often.   Sometimes I use to track gas mileage each gas tank
>	too.
>	It's actually quite accurate compared to figuring out on my own.
>	
>	-Mike
>	
>	
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