nissan200sx.dk Posted June 1, 2013 Report Share Posted June 1, 2013 Hi all. I have added a picture showing the std wiring for a Skyline R33 GTS. I use the instrument cluster from this, and it has also worked with std speed sensor. But now I have changed to 4x4 box from a R32 GTR, and that has mechanical speedo.. I use a v88 and use a AUX as a speedo out port, ECU uses ABS sensors. But how do I connect it? I need to connect on the side were the speed sensor is. But is has 2 wires going to the speedo, and I only have 1 AUX... ?? Thank you. Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted June 1, 2013 Report Share Posted June 1, 2013 The VSS normally has 2 connection, 1 = Earth, Ground. 2 = VSS Signal back to ECCS pin 53. Looking at the R33 schematic, it appears that it is a simplified diagram. The VSS signal input shows as going to the cluster and then a signal from the cluster to ECCS pin 53. The second connection of the VSS to the cluster will be referencing to an earth connection. Not 100% sure, but if it was me I would find the VSS input at the cluster and connect your aux. O/P to that, 1 connection. I checked all of my Nissan Workshop Manual schematics etc and found there is no information regarding the circuit operation. If you look at the R32 GTR VSS schematics it just shows the VSS with 1 connection to ground and the second connection to ECCS pin 53. Quote Link to comment Share on other sites More sharing options...
nissan200sx.dk Posted June 3, 2013 Author Report Share Posted June 3, 2013 Std wiring is sensor - speedo - ECU. I have tried connecting my AUX directly to speedo, but did not work (No movement with key on sweep) I am thinking, as I removed the sensor, that has 2 wires connected to it, could I accidently have removed ground for the speedo? Thanks for your time. Quote Link to comment Share on other sites More sharing options...
Simon Posted June 3, 2013 Report Share Posted June 3, 2013 The speed sensor on the gear box is VR sensor (reluctor) the speedo is going to need an equivalent signal. The signal from the ECU is a square wave so might not trigger the speedo. Quote Link to comment Share on other sites More sharing options...
nissan200sx.dk Posted June 4, 2013 Author Report Share Posted June 4, 2013 Hi Simon. Is there any way to get around this? I really would like my speedo to work with my 4x4 conversion. Thanks. Ronni Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted June 4, 2013 Report Share Posted June 4, 2013 Hi Ronni, Simon is correct about the signal, I didn't even think about that. The following may help however, Go to www.dakotadigital.com Search for their SGI-5 REV C unit, this may be what you need. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Simon Posted June 4, 2013 Report Share Posted June 4, 2013 The device looks the part as it can output both signal types. So you could put it in the line between the ECU and Speedo to convert the signal. this is a link to the product http://www.dakotadigital.com/index.cfm/ ... prd126.htm Quote Link to comment Share on other sites More sharing options...
nissan200sx.dk Posted June 5, 2013 Author Report Share Posted June 5, 2013 Nice! Have ordered.. Or.. I can not as I am from Denmark, and cant select my country for payment. So have written them, asking for help to buy this even when I am from Denmark. Thanks for all your help! Quote Link to comment Share on other sites More sharing options...
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