ZT-R Posted September 29, 2011 Share Posted September 29, 2011 Hey guys i am trying to get my AEM s2 to see the VSS. Looking at the wiring diagrams the wires go to the cluster and then only one goes to the ecu. How would i wire this to the aem unit? I also have a speedhut speedo that i will hook up when i get around to it. My understanding is that the cluster modifies the signal. I do have a R34 cluster in my kitchen but I'm not using it (will sell it for 200 bux). Thanks. Quote Link to comment Share on other sites More sharing options...
rayaapp2 Posted September 29, 2011 Share Posted September 29, 2011 GTZ knows how to do this as he has done it in his 260Z. email him if you can as he doesnt visit here often. Ill text him to check this thread, but no guarantee he will. Quote Link to comment Share on other sites More sharing options...
ZT-R Posted September 30, 2011 Author Share Posted September 30, 2011 Will do, thank you yet again. Quote Link to comment Share on other sites More sharing options...
ZT-R Posted October 2, 2011 Author Share Posted October 2, 2011 Is he using the oem cluster? If so, that is going to be different as it "converts" the signal so the ecu can read it. Granted i have an AEM ems and not the oem ecu so maybe i can change some settings? Quote Link to comment Share on other sites More sharing options...
ZT-R Posted October 2, 2011 Author Share Posted October 2, 2011 Ok, we got it. Ground Gray/Red and hook up pin 53 on the ecu to the yellow/red wire (or vise versa as it does not matter.) and then you need to edit the calibration to read the right speed. In AEMTuner, go to sensors, then right click in the white area and go to Show options full list display, then scroll to VSS calibration. I am using 110 currently and its pretty close, but i need to fine tune it later. Quote Link to comment Share on other sites More sharing options...
BLOZ UP Posted October 3, 2011 Share Posted October 3, 2011 (edited) Yeah, the original signal is a A/C pulse, the cluster converts it to 0-5v DC. Edited October 3, 2011 by BLOZ UP Quote Link to comment Share on other sites More sharing options...
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