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Author wiring electronic speedo
Dave A
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Registered: 10th Dec 03
Location: County Durham
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8th Apr 05 at 18:54   View User's Profile U2U Member Reply With Quote
anyone know how to wire an electronic speedo into a car that was originally cable driven?

i think ive got all the parts i need:

electronic clocks
speedo sender for gearbox

the only thing im unsure of is that the ecu currently gets the "vehicle speed signal" from the transducer on the old cable driven clocks. will the signal from the new gearbox transducer do the same job?

the transducer has 3 wires from it:

brown: earth
black: switched live
blue/red: signal

is this correct? and will i have to mess around with the wires at the back of the clocks? or will they just plug straight in?
AJBek
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Registered: 31st Jul 02
Location: Ayrshire
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8th Apr 05 at 21:44   View User's Profile U2U Member Reply With Quote
I am pretty sure the cable driven clocks have a vehicle speed sender built in to the speedo head which provides the signal to the ECU. When you put in the new clocks this signal will come from the gearbox sender to the clocks and then to the ECU so I think it will still work OK with what you are palnning.
Dave A
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Registered: 10th Dec 03
Location: County Durham
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8th Apr 05 at 22:29   View User's Profile U2U Member Reply With Quote
so i will need to wire the red/blue wire into the clocks, then to the ecu?

anyone know which pins i will have to wire it to on the back of the clocks?





[Edited on 08-04-2005 by corsa808]

[Edited on 08-04-2005 by corsa808]
drunkenfool
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Registered: 7th Feb 03
Location: Hereford Drives: Audi R8 V8
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6th Sep 07 at 23:20   View User's Profile U2U Member Reply With Quote
ttt
Dave A
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Registered: 10th Dec 03
Location: County Durham
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7th Sep 07 at 08:28   View User's Profile U2U Member Reply With Quote
TheCam
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Registered: 16th Mar 07
Location: Kirkcaldy
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7th Sep 07 at 08:56   View User's Profile U2U Member Reply With Quote
corsa808?
that your old name, before you turned into the entrepreneur we know and love as Dave A
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
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7th Sep 07 at 09:07   View User's Profile U2U Member Reply With Quote
correct.
drunkenfool
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Registered: 7th Feb 03
Location: Hereford Drives: Audi R8 V8
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7th Sep 07 at 11:10   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
JP360
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Registered: 16th Jan 12
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14th Oct 12 at 22:00   View User's Profile U2U Member Reply With Quote
i know its an old one but saves me starting a new thread anyone?

 
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