MF system

[jkarlsso@metabolex.com (Jonas K.)]

On 4/22/02 4:14 PM, "Larry" <rocco16v@netzero.com> wrote:

> Al-
> I can't figure out why it would need vacuum to estimate mileage when it has a
> nice ODOMETER sitting right there...?
> Are you sure?

Not milage traveled, but fuel mileage. It uses the vacuum as an indicator of
load, and (probably) in combination with RPM to estimate instantaneous fuel
consumption, then averages it.

Not very accurate IME.

But you do need the vacuum connection to make it "funciton"

Jonas




> ----- Original Message -----
> From: Allyn 
> To: Calimus ; Scirocco-l
> Sent: Sunday, April 21, 2002 9:14 PM
> Subject: Re: MF system
> 
> 
> vacuum thingy is for it to estimate mileage, based on intake vacuum. there is
> also a external temp sensor that you may have to find if you want it to all
> work perfect.
> Al
>  
>   ----- Original Message -----
>   From: Calimus 
>   To: Scirocco-l 
>   Sent: Sunday, April 21, 2002 11:28 PM
>   Subject: MF system
> 
> 
>   Just got back from Bug-a-plooza in East Ridge Tenn. and managed to score
> just about the only Scirocco part I could find.  It was a instrament cluster
> for an 88' rocco.  It's got the 140mph speedo, "working" odometer, 8k tach and
> the Multi-Function clock dealy.  So heres my question.
>    
>   Aside from the proper wiper stalk on the steering colum with the needed
> buttons, is there anything else I need to have in order for this to work in my
> 88' scirocco that doesn't have this system?  I also noticed that there is some
> sort of weird ass vaccume looking sensor on the back of the cluster but have
> no clue as to what the hell it is.  So please send forth all your knowledge on
> this grand device.
>    
>   On a side note, since I was at the car show this weekend I wanted to let all
> of you know that one of our own listers Ray Miller took 2nd place in Water
> Cooled Daily Driver for his 81 S rocco w/16v transplant.  Dan Williams (yet
> another lister) also showed his car.  So the list as well as the state of GA
> was well represented as they were the only 2 scirocco's at the show.  Mine
> however just stayed here at home since the damn infant doesn't want to burp so
> I can driver her.  I'll be working on that over the next week or so as I also
> move to my new house.  I have noticed however that all of my VW's crap out
> when I'm about to take them to a show.  Think they have stage fright?
>    
>   William
>