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Hi,

I converted my R33 from auto to manual a while ago, and since I did it, my speedo has been reading just under half of what it should be, ie at 80 it says around 40 etc.. I am guessing this is because the senders are different? Obviously the auto sender wont fit in the manual gearbox, so I am screwed there...

I have been asking a few of the local gearbox shops around town, but I have had no luck as yet, because frankly, they seem to be a bunch of w@nkers who just dont want to know about it. Out of frustration I have bought a speedo corrector from here (see link below)

http://www1.jaycar.com.au/productView.asp?...eMax=&SUBCATID=

however hooking it up to either of the 2 wires that come from the sender on the gearbox does not work... I am guessing I will need to install the speedo corrector on the wire that goes from the ECU to the gauge, but then my HICAS etc will still be out as the ECU will think I am doing half my actual speed even though the gauge is reading correctly. I would prefer not to do this if at all possible.

Can anyone shed some light on this, or has anyone done this before? I am at my wits end and I'm about to go kick the neighbours dog out of sheer frustration, or possibly cos I am too stupid to work this out....

Any ideas would be greatly appreciated....

  • 2 weeks later...
  • 3 weeks later...

If you can find out the correct point in the cluster, it should be a matter of changing the voltage, which will change the speed shown.

In the older R31 it's a matter of installing a potentiometer to replace a certain resistor in the cluster. That way you can adjust the calibration however you like. .. http://wiki.r31skylineclub.com/tiki-index....ter+calibration

I am not sure whether it will be so easy in R33, but you could look into it.

  • 2 weeks later...
  • 1 month later...

I just got a manual cluster put into my car and now the speedo is alot more like the real speed. Its only out by around 8 kms at 110kph. I just rang a place in perth that can adjust speedos and because it is a electronically spent unit then they are gonna have to change to gearbox speedo gear and the cheapest is $150 and going up to around $350 depends on which one is required. So the question is wether to put up with the slight variation or find another cheaper way to adjust it slightly :cheers:

anyone got any other ideas ?

I now have the r33 manual ecu too. that didn't seem to change anything though.

  • 2 years later...

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