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#324265 30th May 2009 6:35pm
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So my boyfriend has changed the speedo dials on his corsa from a cable to an electronic one. he has managed to get everything else working except the actual spedometer and the rev counter seems to be out.

the speed sensor has been put in, 3 cables black, brown an twin coloured wire,

black to live
brown to earth
twin coloured to back of speedo

has anyone actually done a conversion from cable to electronic speedo or does anyone have any ideas??

help

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what corsa is it??
and do u mean digital dash?


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not as yet but you might have to put a new up to date sensor into the gear box (digital sensor) from a newer model smile


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its a corsa b 1.4 8v an not digital dash just the clocks out a new moddle wth the rev counter as i did not have it on my car wen i put the clock in the rev counter worked with out any wireing need but it not running right an my speedo not workin at all i have the speed sensor out the same car is the clock wired the sensor up black to live an brown to earth an the other to the back of the clock but still no speedo

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ok try a new speedo sensor or i can have a look at it 2moz smile


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ok that would be good i will try get a sensor from the scrapy or would it be best to buy a new one an have i wired up the wire's right

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try the brown to live and the black to ground smile


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Black is switched live, it'll produce a few sparks and burn out if you turn the car on if it's connected to an earth. smile

The electronic speedo runs off the ABS signal which comes from the sensor on the wheel. What reg car is it, and what did the dials come from?


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DavidB #324383 31st May 2009 11:01am
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my car is a L reg an the stuff come off a P reg i think

momo2k9 #324405 31st May 2009 12:35pm
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It's quite tricky. I used a gearbox transducer from an Astra GTE. It just plugs in the gearbox where the cable goes, and wires to the speedo. It runs on pulses, but it seems to work, only losing about +-5mph at about 60mph. If you've got a fuel/speed computer, it'll mess around with that and it won't work properly. Rev counter gets it's info from the 'green wire', which goes to the ignition coil.

I'd do the above method.

Or this:
http://77.96.230.10/sytemsandsoftwa...tive/How_to/General/electronicspeedo.htm


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i think the rev was all ready done as wen i put the clock in an started it the rev showed up but i was goin down the m-waybe hind a car prob doin about 70 an my revs said 2000 so not revin up like it shud the sensor i got out the gearboxan the took my cable out an replayed it with the sensor then wired it up

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If your full stop key on your keyboard has broken, you can copy and paste these - it will make your posts a bit easier to read wink

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Originally Posted by StuyMac
If your full stop key on your keyboard has broken, you can copy and paste these - it will make your posts a bit easier to read wink

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Pmsl chew, just cause its your bday it doesn't give you the right to be rude raftl


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A year older - a year closer to being a grumpy old man raftl He's just practising. happy

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You need to be careful on Corsa as there are wires at the back of the speedo that go straight into the ECU. This lets the ECU know how fast the car is going. They actually link in with the back of the radio too so it raises the volume slightly the faster you drive.

My old Corsa's ECU burnt out because some nutter tried to change the radio without the ISO block, taped the "uneeded" wires together and burnt the speed sensor circuitry in the ECU out.

I would plug a tech1 into the diag port and ensure you're getting a spead read off the ECU if it's starts behaving funny or goes into limp mode.

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