TECH : Request for Help about MFA

[treed2@u.washington.edu (T. Reed)]

Julie,

The speed sensor sits in a cutout on the back of the speedometer. I
believe it has 3(?) pins on the back and there is a strip of flexible
circuit board with a connector on it that plugs in to the sensor.

On cars with cruise, the sensor is the same but an external wire going to
the cruise box plugs in to it. On cars with cruise and mfa, I think its
like mfa only but there is an extra wire going out through the main
cluster harness to the cruise box.

HTH

-Toby

On Mon, 3 Mar 2003, Julie Macfarlane wrote:

> Since we are on the subject, I have an MFA and the speed sensor does not
> seem to work. What does the sensor connect to and where?
>
>
>
> Julie Macfarlane
> Menlo Park Research & Development
> Internet Application Developer
> www.menloparkrandd.com
> www.montgomeryweb.org
> Amsterdam NY
>
>
>
>
>
> >From: "ATS - Patrick Bureau" <txrocco@sbcglobal.net>
> >To: "T. Reed" <treed2@u.washington.edu>
> >CC: <scirocco-l@scirocco.org>
> >Subject: RE: TECH : Request for Help about MFA
> >Date: Mon, 3 Mar 2003 07:35:50 -0600
> >
> >Okay so the wires from the stalk go to the cluster correct, aside from
> >inputs from oil and air temps?
> >
> >see with the digifiz. I get confused because well wires are the same colors
> >at all (golf 88 thing) hehehe....
> >
> >ARrrrrrrgggghhhh!
> >
> >back to the garage I go...
> >
> >ATS - Patrick Bureau - txrocco@sbcglobal.net
> >
> >
> >=>-----Original Message-----
> >=>From: T. Reed [mailto:treed2@u.washington.edu]
> >=>Sent: Monday, March 03, 2003 1:01 AM
> >=>To: Patrick Bureau
> >=>Cc: scirocco-l@scirocco.org
> >=>Subject: Re: TECH : Request for Help about MFA
> >=>
> >=>
> >=>Patrick,
> >=>
> >=>Here is some information on those wires from my notes of when I did my
> >MFA
> >=>install (almost 2 years ago):
> >=>
> >=>mfa switch:
> >=>T7a/2 -> G/BK T4a
> >=>T7C/1 -> GY/R T4a
> >=>T7/3 -> GY/Y T4a
> >=>ground -> BR T4a
> >=>
> >=>outside temp sensor:
> >=>T7/2 -> BR
> >=>T7/4 -> BK
> >=>
> >=>oil temp sensor:
> >=>T7b/2 -> G/BK
> >=>
> >=>T4a is the four-wire connector that you're talking about, except I think
> >=>the info above is for the other end of the connector (not the switch end)
> >=>and the wire colors change between the two.
> >=>
> >=>T7, T7a, T7b and T7c are all connectors on the gauge cluster. I can't
> >=>remember how they're paired up but each physical connector has two of
> >=>those four, one on each "half" of the connector. Kinda hard to explain.
> >=>
> >=>You will definitely need a bentley to dicipher this information.. and I
> >=>can't guarantee that it's correct, since my car is an '87 16v scirocco,
> >=>my gauge cluster is an 8v mutant-cluster with 16v 8k tach and 140mph
> >=>speedo and the mfa portion is from an '86 8v golf. IIRC, though.. the
> >golf
> >=>and scirocco wiring colors were the same.
> >=>
> >=>If your car did not come with MFA, the harness will not be there, you
> >need
> >=>to pull it from a junkyard car. So don't plug the 4 wire connector in to
> >=>anything without knowing its for the mfa first! The cruise switch uses
> >the
> >=>same type of connector, so be careful.
> >=>
> >=>I did reverse-engineer the wires for the cruise switch (and I can give
> >you
> >=>a meaning for each wire if you want) but I didn't bother with the mfa
> >=>since i had both bentleys at the time and I just wanted to get the mfa
> >=>working.
> >=>
> >=>Hope this is helpful somehow (i doubt it!)
> >=>
> >=>-Toby
> >=>
> >=>On Sun, 2 Mar 2003, Patrick Bureau wrote:
> >=>
> >=>> Alright I am trying to install MFA stalk into my non
> >=>> MFA 85 rocco, I removed the nonmfa arm and working on
> >=>> the wirring.. the question I have...
> >=>>
> >=>> 1. there are 4 wires  (blue, white red and yellow)
> >=>> coming from teh stalk does anyone know what they are
> >=>> for?
> >=>>
> >=>> 2. My car has Cruise (non functional) control, and I
> >=>> noticed a similar plug (4 wires, different order)
> >=>> under the dash, should I use this connector?
> >=>>
> >=>> 3. are the plug under dash that connects currently to
> >=>> the cruise control, match color per color on the plug
> >=>> for the MFA wires?
> >=>>
> >=>> Then to figure out the MFA->digifiz wire
> >=>> connections..lol
> >=>>
> >=>>
> >=>>
> >=>> =====
> >=>>
> >=>>
> >=>> _______________________________________________
> >=>> Scirocco-l mailing list
> >=>> Scirocco-l@scirocco.org
> >=>> http://neubayern.net/mailman/listinfo/scirocco-l
> >=>>
> >
> >
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