Alternate Vss Voltage

K-Series Programmable ECU installation questions / support issues
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K20RX7
Posts: 31
Joined: Sun Aug 12, 2018 4:39 am

Alternate Vss Voltage

Post by K20RX7 »

Hi Guys,

Hondata working awsome with the engine. love it.

now VSS input. I had vss input by using the stock fd transmition sensor that feeds the stock clocks. stock clocks take the signal and convert to square wave and all was working perfect BUT>>>>>

Ive installed a DIGI Dash from powertune so i no longer have VSS conversion.

Im using the VSS alternate input on the board. Im just wondering what voltage that the square wave can be? 5V or 12V

I have found a convertor that converts sine to square wave but is around 12v.... i just dont want to feed the kpro 12v if its designed to see 5v.

I know the stock TSX / EP3 is 12v but i thought id make sure.

Hope all is well

BEYTEK
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Spunkster
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Location: Hondata

Re: Alternate Vss Voltage

Post by Spunkster »

K20RX7
Posts: 31
Joined: Sun Aug 12, 2018 4:39 am

Re: Alternate Vss Voltage

Post by K20RX7 »

ok Perfect.


0-5V Square wave..

Next question. if i used the stock vss input pin on the ecu would that take 12v square?

And if so would i still be able to calibrate my pulses per mile using the stock vss ecu pin? or is that for alternate only

Thanks very much for the responce
K20RX7
Posts: 31
Joined: Sun Aug 12, 2018 4:39 am

Re: Alternate Vss Voltage

Post by K20RX7 »

you posted a link showing 0-5v for analogue but the vss is on the digital part. i take it this is still 5v? :)
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K20RX7
Posts: 31
Joined: Sun Aug 12, 2018 4:39 am

Re: Alternate Vss Voltage

Post by K20RX7 »

OK So,

for future refrence for anyone using the Hondata Kpro Alternative speed sensor you require a 5v Square wave.

If the gearbox you are using has a VR sensor this alone can damage the kpro.
You require a convertor to take the sine wave from VR and a chip to create 5v square wave for the vss input in the pic above.

Here is what you need:
https://sirhclabs.com/product/vr-to-hal ... converter/ ($16)
vr-to-hall-converter-top-product.jpg
vr-to-hall-converter-top-product.jpg (52.26 KiB) Viewed 1598 times
I will make a video on my youtube channel on how to wire this up to your kpro V4

BEYTEK is my channel..


Cheers for now
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