Looking to use the abs sensors in the 350z diff to get a speed signal for my nissan s14a speedometer.

My setup is SR20det- 350z 05 CD00* gearbox- 350z carbon prop- 350z diff- 350z driveshafts.

I am using a dekota digital speed converter SGI-100BT to try and convert the signal to send it to the oem speedometer.

I have tried a few ways to wire it up but not having any luck and still waiting for a reply from their tech help.

I can send a calibration (TEST) signal from the SGI which then shows on the oem speedometer (albeit at half the value but I should be able to adjust this when properly setup).

The issue I am having is that the 350z 2 wire abs diff sensor I believe require a 8V power and a signal wire but there are no write ups for setting up the SGI when the sensor requires power sent from the converter(SGI).

I tried putting the abs sensor inline of the oem automatic trans speed signal but I dont think it sends 8V.

I have tried wiring the sensor to the SGI ground and signal inputs, and the SGI positive and signal inputs but have yet to get any signal.

I did see 0.4V between the input (positve voltmeter connection) and SPD - (SGI ground) (negative voltmeter connection). But I dont think I could scale it up to give a proper signal or if its even a signal.

Anyone have any info on the abs sensor operation that would be great.

(I also have a 350z but unable to start it so cannot get voltage readings from its sensors for comparison.)

Thanks.