R32 GTR Elite 2000 VSS Issue

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OSTMicah
Posts: 16
Joined: Sat Jul 01, 2017 11:47 pm

R32 GTR Elite 2000 VSS Issue

Postby OSTMicah » Fri Aug 25, 2017 2:13 am

Hi All,

I am having an issue with the VSS in my car. My Elite has the default pulses set but will not record any MPH until I am moving at around 10mph. At this point the recorded MPH jumps to 14,756mph and then to 20,760mph. These are the only two MPH it shows and it just jumps between them depending on my speed.

Things I have done:
- tried to re-calibrate the speed sensor in the Elite (default pulses is something like 2458. Re-calibrated pulses was something like 16,000 and only lowered the mph numbers displayed)
- switch the type of sensor and the pull-up
- checked continuity of the VSS wire at the back of the cluster and the ECU
- dissembled the speedometer to verify no broken parts
- ensured my speedometer reads correctly

All of these items did not correct the issue. Changing the sensor and re-calibrating it obviously had effects but did not fix it.

Let me know your thoughts!

Thank you,

Micah

OSTMicah
Posts: 16
Joined: Sat Jul 01, 2017 11:47 pm

Re: R32 GTR Elite 2000 VSS Issue

Postby OSTMicah » Tue Aug 14, 2018 11:37 am

I have now switched to an Elite 2500 to test the VSS filter. This only slows down the switching between the two speeds.

Can I get some help on this? Are others out there successfully using the VSS signal on their cars?

JDM Boyscout
Posts: 7
Joined: Wed Jun 06, 2018 11:41 am

Re: R32 GTR Elite 2000 VSS Issue

Postby JDM Boyscout » Tue Aug 14, 2018 2:26 pm

HI

I have the same issue with my r32 gtr with elite 2000 reading very high speed with spike at 20 000MPH with the basemap setting.

Here my setting and it read ways better but still have some spike that goes arounds 110mph to 200mph.

Did you have Nismo speedometer that goes 260 km\h ? Maybe it related...

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OSTMicah
Posts: 16
Joined: Sat Jul 01, 2017 11:47 pm

Re: R32 GTR Elite 2000 VSS Issue

Postby OSTMicah » Tue Aug 14, 2018 11:44 pm

Thank you for the reply. Glad to know I'm not the only one experiencing this.

I am using the stock speedometer. It just counts pulses and reads higher on the face so that should not make any difference.

OSTMicah
Posts: 16
Joined: Sat Jul 01, 2017 11:47 pm

Re: R32 GTR Elite 2000 VSS Issue

Postby OSTMicah » Fri Aug 24, 2018 10:51 am

After speaking with many people at Haltech (all who seem to be unsure of a fix) I spoke with one tech who said plainly that it cannot be done through the factory VSS. He suggested this was because the VSS cable creates too much noise and fluctuation to read on the new Elite software (as opposed to the Platinum). The fix I am going to try is to grab signal from one one of the ABS speed sensors. I'd actually like to grab one front and one rear so I can accurately see wheelspin on launch.

I'll keep this thread updated with my results as it seems to have a lot of views.

duz10s+gtr
Posts: 15
Joined: Mon Oct 16, 2017 8:19 am

Re: R32 GTR Elite 2000 VSS Issue

Postby duz10s+gtr » Thu Aug 30, 2018 9:11 am

Hi please keep me updated on this as I'm about to wire in the same and was just going to grab one of the wheel speed sensors

duz10s+gtr
Posts: 15
Joined: Mon Oct 16, 2017 8:19 am

Re: R32 GTR Elite 2000 VSS Issue

Postby duz10s+gtr » Sat Oct 06, 2018 9:08 pm

OSTMicah wrote:After speaking with many people at Haltech (all who seem to be unsure of a fix) I spoke with one tech who said plainly that it cannot be done through the factory VSS. He suggested this was because the VSS cable creates too much noise and fluctuation to read on the new Elite software (as opposed to the Platinum). The fix I am going to try is to grab signal from one one of the ABS speed sensors. I'd actually like to grab one front and one rear so I can accurately see wheelspin on launch.

I'll keep this thread updated with my results as it seems to have a lot of views.


How did you go with this?

HaltechAdam
Haltech Staff
Posts: 242
Joined: Mon Jul 07, 2008 12:24 pm

Re: R32 GTR Elite 2000 VSS Issue

Postby HaltechAdam » Sun Oct 07, 2018 10:53 pm

Sensor Filtering for vss now available on 2.28 firmware

Added Filtering to vehicle speed sensors.
Smoothing filters were added to all vehicle speed sensors
Additional filtering is accessible through the Vehicle Speed Filter Scale in sensor properties


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