ECU Signal Information needed

[Vegascorbin]

Our race car (90 S13 with STOCK KA24E) has decided to throw a speed sensor code (14) This is most likly due to the fact that we have no dash and therefore no spedometer to provide an input to pin 32 of the ECU.

I can come up with a signal to simulate the speedometer signal ecept for one small problem. I don'ty know what type of signal it should be.

Can somebody tell me the type of signal that is present on ECU pin32? Is it a solid logic level (+5 Vdc or +12Vdc) or is a pulsed signal and if so what is the peak voltage level? Or can I just ground it and that will clear the code?

Any ideas or input appreciated.

[Vegascorbin]

bumpAnyone willing to connect a scope to pin 32 on the sohc ECU and tell me what the signal looks, like?

Please?

[liquid_cool]

i dont have a single cam ecu bro..but i did see a Apexi lcd display that "displays" speed and rpm's for cheep on ebay today ..makes a perfect hud for your dirt car and will solve that issue ....item number 320349384146

Apexi RSM Gp rev/Speed Meter

hope this gives ya a solution.

[Vegascorbin]

thanks for the input. I will have to check that out.

thanks

[liquid_cool]

anytime man..good luck.