I have an 85 T/A with a cable driven speedo. I read the tech article at http://www.hioutput.com/tech/speedo.html Am I correct in the fact that there is a vss on the back of my speedo? If so, can I use the tranny mounted vss that goes to my electric style speedo to run to the computer so it has its needed input. By the way I have an lg4. Well sort of an lg4. It is now a computer controlled 350 running off of the lg4 computer. I notice the brown wire outputs on the buffer box. I was wondering if they generate the same signal as the lg4 computer needs from the cable driven vss?

Thanks

Ben

 

The computer expects a 0 to 5 volt signal, and (I believe) 2000 pulses per mile. At some point, 4000 pulses per mile was used, but I don't know what year it changed in.

 

Thanks for the help. I found out that my comp will take a 2000 pulse. I was hoping it would. I new it would either be that or the cable driven speedos would send out a totaly different format of signal to the computer which is what I was affraid of. Well, I think that the signal changed around 88 or so. I have a speedo out of an 86 and one out of an 87. I bought one and came across one that I got for free with some other stuff. I also got the buffer box which send the signal to the speedo, and convert the pulse from 4000 that comes from the sensor to the 2000 that the computer needs.

Ben