DIYEFI.org Forum

Posted: **Tue Aug 28, 2012 12:30 pm**

I need to know how many teeth your sensor(s) have, please assist and post details here.

I'm currently thinking give the ECU just one input for this, and make full 4 wheel traction control/logging an optional thing using some sort of external processing grunt. Though it may be possible to do it with a shared port for up to 8 similar inputs. I'm not sure yet.

Currently I want to get a ball park for the frequency of signal arriving and a feel for how to handle that.

Fred.

Posted: **Wed Aug 29, 2012 3:12 am**

My 1989 GM TurboHydro 700R4 Automatic transmission has 40 teeth, and in my case the sensor is a VR sensor.

Posted: **Thu Aug 30, 2012 8:12 pm**

Honda Civic / Integra from the 1988 - 2000 era has a single VSS sensor mounted on the differential
Sensor is a open-collector sensor, very easy to interface

The VSS signal (measured data)
At 60 km/h Freq: 42 Hz
At 100 km/h Freq: 70 Hz
At 120 km/h Freq: 84 Hz
At 170 km/h Freq: 119 Hz
duty in all case:50%

Source:
http://forum.pgmfi.org/viewtopic.php?f=2&t=217&start=15

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VSS Survey: How many teeth does/do yours have?

VSS Survey: How many teeth does/do yours have?

Re: VSS Survey: How many teeth does/do yours have?

Re: VSS Survey: How many teeth does/do yours have?