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 Post subject: Another speedo question
PostPosted: Wed Oct 17, 2018 12:33 am 
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Joined: Fri Apr 03, 2015 3:33 pm
Posts: 104
Location: Somerset
TIPEC membership: 0
I want to install a trip meter (http://www.thebasicroamer.co.uk/Products/RoamerTime) on my 85.2 944. I had it on my old square-dash car driven from the speedo cable, but of course the oval dash cars have an electric feed from the transaxle.

So my question is how can I get to the signal ? From the wiring diagram I can see no connector between the transaxle and the instrument cluster, so I suppose the cable is nicely wrapped up in a loom for its whole length. I guess I could tap into the plug on the transaxle, and then I'll have to run a wire into the cabin somewhere. Or I could pull out the instrument cluster and get to it there (pin 14 on the centre plug, I think), but that's all rather fragile.

Any thoughts ?

_________________
If it ain't fuel then it'll be sparks, except when it ain't sparks, in which case it'll be fuel.
-----------------------------------
1959 Austin Healey 3000 Mk 1
1985 Porsche 944
1999 Massey Ferguson 4225
2006 Range Rover Sport


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 Post subject: Re: Another speedo question
PostPosted: Tue Oct 23, 2018 8:25 pm 
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Joined: Fri Jun 12, 2015 5:02 pm
Posts: 524
TIPEC membership: 7406
If you remove the boot carpet, and the underlay you will find the wiring loom that comes up from underneath the rear of the car. If you have the wiring diagram you will be able to find the correct colour wire to tap into. But be careful as that wiring loom also has the fuel pump wiring in it as well. That's probably the easiest place to tap into it and run your own wire from to he front of the car. Trying to tap in behind the clocks will be close to impossible without removing the dash as there is very little spare capable there.

_________________
924 1981 GTv8 Bonkers V8 conversion trackday car.
944 1986 2.5 Lux Red the 1st rolling project "never quite finished" Sold but will not be forgotten
944 1987 turbo a brief encounter, awesome car
944 1988 S current project


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 Post subject: Re: Another speedo question
PostPosted: Tue Oct 23, 2018 9:18 pm 
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Joined: Fri Apr 03, 2015 3:33 pm
Posts: 104
Location: Somerset
TIPEC membership: 0
Thank you - that's exactly the sort of info I was looking for. From the wiring diagram it appears to be a blue/red wire that I'm after; I'll have a look a it over the weekend.

_________________
If it ain't fuel then it'll be sparks, except when it ain't sparks, in which case it'll be fuel.
-----------------------------------
1959 Austin Healey 3000 Mk 1
1985 Porsche 944
1999 Massey Ferguson 4225
2006 Range Rover Sport


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 Profile  
Reply with quote  
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