ive recently bought a speedo converter for my silvia s14a, i have wiring instructions with the converter,
I need to find out which wire is the signal wire on the speedo head plug? As my instructions arent clear enough
Does anyone know or know where i can find a wiring diagram ? I also need live an neutral wire , but i could find another source for that if need be.
I would also be VERY interested in this
Sorry to hijack, but where did you get the converter and how much did it cost you mate???
In s14a it is pin 32 on ECU, yellow-green wire.
Ok cheers, so in theory it should be the same colour at the speedo head plug.Originally Posted by geiserp
It would be great if you could tell me where i can get a pin diagram so i know where to start looking.
That wire is where the speedo outputs the speed to the ECU
The input to the speedo (where I expect you'd put a mph converter) is from the gearbox sender.
This should give you a pinout diagram.
http://www.sxoc.co.uk/vbb/showthread.php?t=231991
It's wires 25 and 26. See if the colours are red and red+yellow stripe.
One of those is the signal, the other is the neutral. Use a multimeter and see which of the two corresponding pins on the back of the clocks is joined to pin 40 (the ground connection) - that one will be the neutral one of the pair.
That wire is where the speedo outputs the speed to the ECU
The input to the speedo (where I expect you'd put a mph converter) is from the gearbox sender.
This should give you a pinout diagram.
http://www.sxoc.co.uk/vbb/showthread.php?t=231991
It's wires 25 and 26. See if the colours are red and red+yellow stripe.
One of those is the signal, the other is the neutral. Use a multimeter and see which of the two corresponding pins on the back of the clocks is joined to pin 40 (the ground connection) - that one will be the neutral one of the pair.
Yeah the converter attaches to speedo head plug behind clocks as u said, thanks for this information i'll try make some sense of it and fit it this weekend hopefully
sorry, do u know which diagram is correct?? I think the second diagram from the 240sx looks more like my clocks, but will it definately be the same as the s14a silvia
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