R34 GTR Speedo Drive , sensor type ?

[Butters]

Working through possible solutions of converting my mechanical speedo. 

 

Anyone know what type of speedo sensor the factory r34 gtr getrag has ? what the output is ? I assume its not a VSS and more a voltage like earlier speedo sensors ?

Can an ECU read it ?  

[GTSBoy]

It's almost certainly a reluctor generating an "AC" waveform. No, ECUs don't generally read those - they're usually set up for PWM square wave 0-5v stuff.

[Butters]

Thanks mate, thought you might know the answer.