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Tach hookup?
by
Infinitrium
on 03 Jul, 2008 15:07
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So I have this instrument panel out of a 92 or older diesel Jetta that I got for free and I wanted to hook it up. I got my old instrument panel out but I didn't see a wire or connector for the tach connection. Would it be as simple as just putting the proper connector on the alternator and running a wire through the firewall and connecting it to the new instrument panel? I sure would like to get it to work, but if I can't I suppose I'll just sell it here.
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#1
by
burn_your_money
on 03 Jul, 2008 18:56
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plug and play. It's already wired into the car assuming you have a mk2. Just install the cluster and make sure the alternator has the W terminal and you should be good to go, unless the wires have corroded
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#2
by
Infinitrium
on 05 Jul, 2008 17:28
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Well, this instrument panel with the tach has a 2 prong connector off to the side of the speed cable connector that isn't on the instrument panel in my Golf. My alternator has the W port but nothing is connected to it. Should there be? If it wasn't for the difficulty of reconnecting the speed cable back on to the instrument panel I'd haul them out and try the tach again.
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#3
by
smoken u
on 06 Jul, 2008 07:28
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that 2 prong connector is only for a voltage regulator I belive.
I ran mine for a week without it hooked up and it seemed to be fine all the guages ran normal.
My car had 2 w-terminals on the alternator and one didn't work, so I switched the noise suppressor and the tach signal wire and it seemed to work just fine.
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#4
by
Vincent Waldon
on 06 Jul, 2008 12:09
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If you're talking about a two-pronged connector right at the neck where the speedo cable mounts then you're likely referring to the Vss signal that would go to the factory cruise control, if equipped.
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#5
by
burn_your_money
on 06 Jul, 2008 17:03
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If you're talking about a two-pronged connector right at the neck where the speedo cable mounts then you're likely referring to the Vss signal that would go to the factory cruise control, if equipped.
Correct, it's not needed for the tach to work.
Look around at the alternator cables/wires, there should be one there for the tach. If not, follow the wires backwards, the exciter wire (blue) has a connection by the battery and the tach wire should be there as well in the same connecter
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#6
by
FWD.MOTION
on 20 Jul, 2008 07:59
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isnt there a need for the signal convertor?
Isnt there a a/c current off the w terminal and the tach reads in D/C?
please inform
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#7
by
burn_your_money
on 21 Jul, 2008 17:50
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if you are using a stock alt and cluster you don't need any converters. That's already built in
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#8
by
FWD.MOTION
on 02 Aug, 2008 19:27
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Ive just noticed that poster was talking about a mk2 cluster...
Would this build in convertor be on the mk1 diesel clusters as well?
what about mk1 gasser clusters? considering the tach hooked up to a spark coil
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#9
by
Jimmy Diesel Junior
on 29 Nov, 2008 11:05
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Hi all. I have a '91 GTD golf and i tried to install a vw tacho but it doesn't work and i guess from reading this, i need to connect some wire to somewhere??? Can anyone please explain in simple terms, what colour wire should be sticking out the back of the alternator (If any) and if so, where do i connect it to?
? Cheers..Shane, Ooh and i'm in Ireland by the way
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#10
by
duffer
on 29 Nov, 2008 15:02
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Unless it's different in Europe, the tach
wire is RED/black (Red with black tracer)
and it's attached to the "W" terminal on
the alternator. At the tachometer end,
its a GREEN wire in the plug-in.
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#11
by
Jimmy Diesel Junior
on 30 Nov, 2008 01:40
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Hi all. So an i correct in saying that i need to splice into the plug that goes into my clocks and connect that back to my alternator (W-Terminal)
Thanks for help, really want to sort this today, Cheers..Shane